Disclaimer: I do not own Jimmy Neutron or any related characters.

The next day Jimmy was out walking in the park again. He needed to clear his head from all the John stuff. He looked down at his watch. 8:30, I better start heading home. He looked up and saw that the sun was just about done setting. He decided that he could use a few more minutes. He sat down on a bench and closed his eyes.

"Look, you owe me money," Jimmy heard someone shouting in the distance. He opened his eyes and saw that John was yelling at some kid a few hundred yards away.

"I, I don't have it with me. I'll get it to you as soon as I can," the kid timidly shot back.

Jimmy got up from the bench and walked a little closer. His curiosity had gotten the better of him. He took a good look at the kid. Jimmy guessed that he was around thirteen.

"Can I please just have some? Just a little?" the kid asked.

John laughed a little. "You've got some nerve, little man. You tell me that you can't pay me for t your last purchase, and now you want some more?"

"I'll, I'll just go then," the kid said as he started walking off.

John reached out and grabbed the teen's arm. "It's not that easy," John told him as he started to punch the kid.

The kid tried to fight back, but he was not match for John. The kid was bleeding pretty badly when Jimmy decided that enough was enough. "John, let him go," he calmly said as he stepped out from behind a tree.

John looked at Jimmy and shoved the kid hard to the ground. The kid wisely took this opportunity to run off. "Unbelievable. Looks like we meet again, Neutron."

"Why don't you just get the hell out of here and mind your own business!" John angrily yelled.

Jimmy was in no mood to fight. The kid had gotten away, that was the important thing. "Fine," he said as he walked off.

"That's right, walk away you little coward. Run home to your stupid mommy and your dumb little girlfriend!"

Jimmy clenched his fists when John mentioned Cindy, but he just kept walking. "Just keep going. Get home to your stupid little whore before your time with her runs out," John sneered.

Jimmy spun around. "Don't you dare bring her into this!" he angrily yelled.

"And don't you dare tell me what I can and can't do! I'm sick of you, Neutron. I saved your pathetic little life. I could have let you get trampled like the pathetic bug you are. But no, I stupidly helped you. And you still can't mind your own damn business!" John angrily yelled.

"Is that your business? Beating up little kids?" Jimmy shot back.

"The little piece of shit owed me money! But you have to play the hero, Neutron. You have to be Mr. Righteous, always in the spotlight. Whether it be inventing some stupid little robot or getting a cat down from a tree, you always have to have the spotlight! You're pathetic!"

"Let's just finish this!" Jimmy shouted as he tackled John to the ground. John just kicked Jimmy off him and stood back up.

"Fine!" he shouted as he swung at Jimmy. Jimmy ducked, but John sent a kick towards Jimmy's crotch. Jimmy moaned in pain as he fell to the ground. He quickly rolled to his side as John wrapped his hands together and swung them down where Jimmy's head had been. Jimmy kick-swept John's feet from under him and jumped back up.

John ran towards Jimmy, but Jimmy spun around and sent a roundhouse kick towards John's face. John tried to duck, but he wasn't fast enough. Jimmy was through playing games. As John stumbled backwards he ran towards him and punched him hard in the face. John tried to hit him back, but Jimmy was in the zone. He blocked the blows and kneed John in the groin. John fell to his knees. He tried to get back up, but Jimmy was already in action. He sent a kick towards John's face, which connected.

As John rolled backwards he grabbed a branch that was lying on the grass. "You're dead, you little shit!" he yelled as he ran towards Jimmy and tried to hit him in the face with the branch. Jimmy just ducked and grabbed the branch. He kicked John in the shin, which made him loosen his grip on the branch. Jimmy gained control of it smacked it hard across John's face.

John staggered to his feet and put a hand to his bleeding head. Jimmy took a few steps back. "You want to play dirty, huh? Then let's play," John angrily said as an evil grin spread across his face. He pulled a switchblade out of his pocket and opened it.

John resumed a fighting stance and slowly moved towards Jimmy. He thrust the knife towards his enemy, but Jimmy dodged it. Jimmy tried to kick the knife out of his hand, but John was expecting this. He moved out of the way and slashed Jimmy's thigh.

"Arghh!" Jimmy groaned as he saw the blood begin to flow through the tear in his jeans. He jumped onto John and grabbed the arm that held the knife. They wrestled for a moment, but Jimmy eventually was able to head butt John. He dropped the knife, which Jimmy quickly picked up. As he pinned John to the ground he held the knife to his throat.

"You wanted to end it," Jimmy said as he put a little more pressure on the knife. A trickle of blood rolled down John's throat.

John sat there, an expression of pure hatred on his face. "You really want to do this, Jimmy? Do you want to spend the next thirty years of your life in jail for murder?"

Jimmy grinned. "There are no witnesses, John. I'm a hero. You pulled the knife out. It's self-defense. There isn't a judge in the world that would send me to jail.

John stared Jimmy in the eyes. "Then do it," he calmly instructed.

Jimmy stared at John's eyes. He realized that he had the perfect opportunity. He could kill his mortal enemy, he could save the world. He wouldn't go to jail, his mission would be over. He wouldn't have to worry about saving the world anymore.

But he knew that it was not supposed to be this simple. There was no way that he had trained for five long years for it to end like this. It didn't feel right. He thought back to the day before, when John had saved him.

Jimmy slowly pushed a button on the switchblade. The blade retracted back into its holder. John started to get up, but Jimmy pushed him back onto the ground. Without looking up, he threw the knife into the nearby stream. Jimmy stared John in the eyes, his face holding more hate than he could ever have imagined. "We're even," he said as he stood up and began walking home.

Author's Note: And so ends book four. Did you like it? Please hit the button to your left and review. I don't want to have to beg, but I'm afraid that it's come to that. I spend hours writing these stories; please take ten seconds to tell me how you feel about it. It means a lot to me.

Well, I guess I better get to work on book five. Thanks again for reading, and I hope you enjoyed it.