"So how was the meeting?" Goten asked Trunks as the two dads walked behind their excited sons at the zoo.

"Same as always," Trunks said. "Boring."

"Glad I'm not you." Goten laughed as Trunks gently punched his shoulder. "What? You're a high corporate president with a boring desk job. Fun for all."

"It's not easy. But it has to be done. Capsule Corp. has been part of my family for..."

"For three generations," Goten said, cutting his friend of, "and when Polo grows older, he will continue the Briefs tradition of running the company. Yeah, yeah, I know. You've only told me a thousand times."

"Well," Trunks said sarcastically, "at least I didn't have to tell you for the thousandth and one time." Goten shook his head, grinning.

They finally caught up to the two boys as they stopped to look at the lions.

Polo pulled out a notebook and pen from his backpack and began jotting down notes. Trunks' curiosity got the better of him, and he asked, "What are you doing, Polo?"

"It's a project for school, Daddy," Polo said, only looking up to look at the lion. "We need to look for different kinds of animals and find some way to present it to the others in the class."

"So how are you going to present your information?" Goten asked.

"I'm getting facts and drawing pictures and making a college."

Trunks looked a bit confused, then said, "Do you mean a 'collage' Polo?"

"Huh?" Polo said, looking at his father. "Well, maybe. What's the difference?"

"A 'collage' is a bunch of stuff, like pictures, put together to create something. A 'college' is a type of school."

"Oh. I think I meant 'collage.'"

"Yeah, I think so, too. So are you doing all different kinds of animals, or a certain animal, or what?" Trunks asked.

"We're doing certain groups of animals. I'm doing the cat family, from tigers to house cats."

Gozen nodded. "The school is doing it for some kind of fundraiser to help animals in danger."

"Endangered animals, Gozen," Goten said. "It means animals that might become extinct if people aren't careful."

"Right," Gozen said. "People are supposed to come and pay money to come in. They get to look at our presentations, watch plays, and stuff. Then they could make a donation if they want to, and they could buy food and stuff. But all the money goes to helping endangered animals."

"That's a very cool idea," Goten said, nodding. "Did the school come up with this?"

The boys shook their heads. "When the teachers showed us about endangered animals in the auditorium, the students decided to do something to help," Polo said.

Trunks nodded approvingly. "That's really cool."

Gozen piped up, "Polo and I were the ones who told the teachers what the students wanted to do. Nobody else would do it."

"I'm proud of you guys," Goten said.

Polo and Gozen puffed up their chests proudly. "We thought it was a good idea, too. And we weren't afraid to do it."

"Not even a little?" Trunks asked.

"Well...maybe I was," Gozen said sheepishly, but a scowl replaced it quickly, "but only a little."

Goten picked up his son to give him a piggyback ride. "I'm sure you were. I might have been, too, if I were you." Goten walked ahead of Trunks and Polo as the blond boy put his notebook and pen away. Trunks waited for him to finish.

"Daddy?" Polo said.

"What is it, son?"

"I was talking to my teacher, who used to be a sociologist, and I was talking about you and Uncle Goten."

"How'd you come across that topic?"

"Well, I feel more comfortable with him than any other teacher on campus, and he knew I was your son, and he knew who you were..."

"Figures," Trunks said, slightly annoyed.

"...And I was talking to him about Uncle Goten, and he said something that I didn't really understand."

"What did he say?"

"Well, I told him that you and Uncle Goten had been best friends for a long time."

"And...?"

"Um...he asked me how long you and Uncle Goten had been friends, and I told him over twenty years. That's when he told me that all friends eventually...um..."

"Eventually what, Polo?"

"Eventually lose... 'the special bond that kept the relationship together.' That's what he told me. What did he mean by that, Daddy?"

Trunks picked up his son and placed the boy on his shoulders. "He's saying that someday, best friends will stop being friends."

"Why?"

"Something happens to their relationship, and they just end up not as close as they used to be. There might be a disagreement between friends or maybe they might not have anything in common anymore, and their friendship just fades away."

"But why would something like that happen, Daddy? Why would best friends just not be friends anymore?"

"People change, Polo." Trunks walked to catch up with Goten. "People's way of thinking and their opinions change, as does their interests and likes and dislikes. It might steer best friends down two very different roads, instead of the similar one they were on before. The bond between them just kind of fades away, and might eventually disappear, and they stop being friends."

"Do you think that will happen to you and Uncle Goten?"

"I dunno. It hasn't happened yet."

"But my teacher said that it happens to everyone eventually."

"Well, I don't know. And what kind of sociologist teaches a bunch of second graders, anyway?"

"Oh, he used to teach at some college, but he said he liked little kids better."

"Ah. Is he old?"

"Not really. He has white hair, but he says it's naturally like that."

"I see. How old is he?"

"I dunno."

"What's his name?"

"Mr...um...Kyagou."

"Kyagou?" Trunks said. "Do you know his first name?"

"Um...Michael?"

Trunks almost tripped. "Michael Kyagou? He's your teacher? My gosh."

"You know him Daddy?"

Goten walked over to Trunks, with Gozen still on his back. "What's the hold up, Trunks? What's taking you so long?"

"Polo was just telling me about his teacher...Michael Kyagou."

"Kyagou? He's teaching elementary now? Weird."

Gozen looked at Polo, then said, "How do you know 'bout Mr. Kyagou.?"

"He was a teacher when Goten and I were in college," Trunks said. "He taught both of us at some point."

"But Gramma said that you and Uncle Trunks never went to the same high school or college," Gozen told his daddy.

"That's right," Goten said. "Kyagou went from college to college, teaching here one year, teaching there next year. He never stayed at one college for more than a year."

Trunks looked up at Polo. "You said you like talking to him, didn't you Polo?"

"Yeah," Polo said happily. "I feel really comfortable talking with him."

Trunks smiled. "I did too. He was my best teacher friend. Really fun to talk to." Polo nodded.

"Daddy?" Gozen said. "If you and Uncle Trunks didn't go to the same school ever, why are me and Polo going to the same school?"

"Trunks and I thought that it would be better if you guys go to the same school, since you're both best friends and all," Goten replied.

"But why didn't Gramma and Aunt Chi Chi put you guys in the same school since you both were best friends?" Polo inquired.

"Well," Trunks said. "I guess they didn't trust us. When we were your ages, and we were together, trouble was like a third member of our group. I guess they thought that if Goten and I were put in the same school, it would be gone by the end of the first month."

"Gramma said that you guys were a lot of trouble when you were our ages," Gozen said.

Goten and Trunks began walking down the path that led to the monkeys. "That's right," Trunks said smugly. "Like I said, when Goten and I were together, trouble followed. We played pranks, goofed off, and basically were a pain in the ass to everyone."

Goten laughed. "Yeah, we had fun. But most of the time, the pranks and stuff were Trunks' idea."

Trunks nodded. "That's right. I had to do something with my bigger-than-average brain. Besides, it was fun."

Polo looked up, then cried out, "Look Daddy! Monkeys."

Trunk, Goten, and Gozen looked ahead of them and saw the different cages with the different monkeys. "Do we really turn into a giant monkey if we look at a full moon, Dad?" Gozen asked. "Uncle Vegeta said we do."

"Well, we can, but only if we have tails," Goten said. "Good thing we don't, or else there would be no more Earth."

"Is it true that you grew up with no moon?" Polo said.

"Yeah," Trunks said. "It was destroyed way before Goten and I were born."

"Why?" Gozen asked.

"Well," Goten said. "Your Uncle Gohan used to have a tail, and there was a full moon when he was younger. He looked at it, and transformed. Piccolo, a Namekian, had to destroy it so Gohan would turn back to normal."

"Uncle Gohan told me about Piccolo. And how Piccolo died. And how we have a moon now."

"Gohan was really sad when Piccolo died. But I'm kinda surprised that he told you guys how we got a moon."

"He said we had to learn how we had a moon before we could understand how Piccolo died," Polo said. "So he told us about Beibi and how he wished for that planet that's our moon now.

"Is that one way that best friends lose that bond, Daddy? If one dies?" Polo asked.

"Well, kinda, but not really, since they were friends even if one of them died. The only way people wouldn't be friends if a person died would be if the other person forgets about them."

"What are you talking about?" Goten asked.

"Polo was talking to Kyagou, and he said that friends lose their bond that made them friends in the beginning. Polo was just asking me how that happens."

"Oh. Yeah, people tend to do that, huh? After a while of being pals, they just take off in different directions. It's good it they both decided to go separately, but if they had an argument and stop talking to each other, then that's a bad thing."

Trunks nodded. "And it's worse if it's over a little thing, too. Then two people who were best friends would be throwing a great relationship over something stupid."

"Yeah, that would be a really sad thing."

TBC