Is keeping it classy in games. There is no need to act a mess being rude to everyone when you get out in games. It's best to say good game and leave gracefully.
Comments
I've always held the opinion that (almost) anything goes inside of the game, but once you're out the game is over so you have to realize that it's just that: a game. It's a lot easier to enjoy games when you can have fun even when you don't win.