Guys who refuse to shake your hand post-game because of ridiculous stuff that happened during the game.
Context: guy from the other team went skating backwards, ran into me, goes flying, then crying to the ref that I cross-checked him. Incidental contact isn't a penalty last time I checked.. I should probably mention this guy is a) a ringer from a league or two up (my team's in D league), and b) is a known whiner and goon. After he got a goal waved off for a kicking motion, he was out for blood. Took hard, deliberate slashes at my stick the rest of the game, then puts me on my ass in front of the net and gets whistled. Guess what he did? Cried to the ref that I should go to the box for interference. On the way to the box, he proceeds to chirp me that "I need to learn to fucking play hockey.." That's why I'm in D league, to learn proper ways to play the game again after taking time off; sorry that you have to slum around here because you wanna goon it up, but whatever helps you sleep at night and makes you think your dick's bigger.
But the crown of this was going through the handshake line. Pulled his hand up as I went by him.
That's what made me angry here. I cannot stand poor sportsmanship. I'm sure it's been said many times on this website before by a lot of people, but seriously. If the final buzzer sounds, you let it go, line up, and no matter how much you wanna kill the other guy, you grow a pair, man up, and shake their hand. Go have a beer in the locker room, then go home. We all do this for fun, it's not the end of the world. Especially since some of us have to get up and go to work the next day.
TL;DR: got ran by a ringer all game, and I was the asshole, apparently. Whatever, at least I scored two goals.