The guy who got beat up seems like hes a bitch, honestly. Bitching to whoever he was on the phone with, getting into a shouting match with a woman, throwing his phone down all over a pizza. If I was there and he wasnt being disrespectful to the woman and she was just over reacting, called her boyfriend in and he starts hitting the guy, I would try to help. But it really isnt my problem at all if some guy opens his mouth, stoops to the crazy bitches level, and gets slapped around by her monster boyfriend.
Im sure everyone in that pizza place, and the rest of the world, would be pissed at some bitch cutting the line. Theres only one guy in there who got hit, and its the one who made a big deal about it. Keeping his mouth shut would have kept him out of trouble. Its not up to anyone else to gather up their balls and take on a 300 pound beast, over a spot on a pizza line.
BJJ may have helped, but without common sense its useless. I wouldve told big man "lets take this outside". And ran right out the door to a new pizza place.