I was goalie for our floor hockey team. This guy on the other team appeared to have been trying to post me up in the crease - not allowed nor appreciated. Then the ball went down to the other side, and he decided he'd cherry-pick, camping out right at the front of the crease.
So, I came up behind him, checked to see that the refs were looking the other way, and then whacked him in the crotch from behind with my stick.
Moral of this story: Don't mess with the goalie in the crease.