Give abuse after abuse after abuse and make fun of my team, and say how bad my team is, then when we win, they just leave without saying anything >.> (enemy btw XD)

Some people give better than they get. If you need to take satisfaction, you've at least humiliated them.

i like to be passive aggressive . If i win a lane badly and the enemy team starts to fight . I say that my opponent was good but just didn't get any jungler support . At this point the game completely blows up and the enemy team if they could would kill each other. Works every time :P