He was fascinated by Dreamsand and the way that it could morph, entirely dependent upon the recipient of the sand. Whenever he intercepted the sand it formed dolphins and he doesn't quite know why, but he's learned to find comfort in the golden mammal. He finds himself winding down, finally able to relax after the day that he has had when he catches sight of something moving in his peripherals. He turns quickly, taking flight, the wind propelling him forward as he chased down the shadow that he had seen. He finds himself in an alley and he thinks that he caught whatever it is that he saw. He just didn't expect the shadow to be the Easter Bunny.
He's tall and intimidating, but he's not gonna let him know that he's a little bit afraid, so he shoots back a quip, which he regrets nearly instantly when the bunny's facial expression turns dark. He messed up back in 68'. He caused a blizzard on Easter, but it wasn't totally his fault. He lost control, but he's learned since then. That blizzard cost him a lot more than the respect of the bunny. Blizzards are dangerous, they come on suddenly and can kill people. He doesn't want people to get hurt. He usually refrains from causing blizzards, but that day was tough, and the small snowstorm that was caused by his emotions quickly swelled and turned into a full-blown blizzard. He regrets it, but there's nothing he can do about it now. Bunny never got his revenge for the blizzard, at least not in person, and he fears that the day has come for him to atone for what he did.
It's not. Bunny shocks him, and even though there is a barely concealed rage hiding behind his eyes, the bunny says that he's not here for that, and that throws him for a loop. His split second of shock allows for something big to pick him up and suddenly, he's in the air. He finally gets a look and now he's just confused. He doesn't know why Santa's yetis are here, and he's certainly not aware of why he is being shoved inside of a sack. He does learn that he does not like being grabbed, and he does not like being put into a sack. He starts kicking because he's not going out without a fight, but as it turns out, a sack is hard to fight. He also must admit that he's kind of curious as to wear he's being kidnapped too, so maybe he doesn't fight quite as hard as he can.
When they finally get to wherever it is they're going, he lands, more like crash-lands, and peeks out to see he's in Santa's workshop, and now he's sure he's dead. He's been trying to bust into the workshop for years, and now he's being hand-delivered there? Something is not right about this and as he peeks out of the sack he can't help the exclamation that escapes him as he sees not only Santa but the Tooth Fairy and the Sandman as well. Even though they'd been ignoring him for centuries, he couldn't help but to be a little star struck, besides they were meeting him now, and that had to mean something.
He really hates being lifted into the air, and he really wishes that these yetis would respect his personal space a little as he's lifted into the air for the second time that night. North has the audacity to assume that his yetis treated him well, and he reacts with a little bit of venom in his voice as he recounts his journey in the sack, but it turns out that sarcastic quips don't seem to register with North. North goes through some introductions, but neglects to explain the reason to why he's here. He also learns that he holds the record for being on the naughty list, which is actually a source of pride for him, but the idea also fills him with pain. They knew about him, and North kept track of him, but never bothered to introduce himself before now. There must be a reason. After three hundred years there must be an outside cause to force the guardians to all finally meet him, and North finally tells him. He's being made a guardian.