Guys, it's one thing to get wrapped up in the game - in the game, it's all about getting others killed and pushing your opinion, and sometimes things get heated. Post game, however, you should be able to shake hands, congratulate those that won, and apologise for the things said in the heat of the game.
Insults post game are unacceptable, and if you can't walk away from the game politely, then you should leave your salt in your own lap before throwing it at others as a weapon.