Murder =/= fist fight.

And i'm not even justifying a fist fight. Just saying that in the real world, when people are drinking, Maybe don't be surprised if you and your friends make fun of someones home and compare them to John Goodman and then you get punched in the face.

Right wrong or indifferent, I'm not surprised that the guy got physical. This type of scenario plays out in probably thousands of bars every weekend across the world.