Now, Hippypancake, to play devil's advocate, although that player had absolutely no right to toss that miniature across the room, that doesn't give you the right to sock him in the nose. Complain to the store owner, toss his stuff around too, or even call the police (although they might just seem amused by the situation, honestly). Escalating directly to violence is a good way to wind up in prison.
I know looking back I shouldn't have done that but it's over and he hasn't been seen again. Although throwing my model across the room isn't the only thing he's done people have complained that he has been stealing models from them and the manager can't do anything because we have no proof
The Undefeated 13th (SW) - W 3, L 0, D 2
The Swarm (Nids) - W 33, L 14, D 0
Da Waugh Squad (Orks) - W 5, L 9, D 2
The Gunline/Gundam Wing (Tau) - Under Construction