Las Vegas is made for everyone, but not everyone is made for Las Vegas. Countless times we have seen people who drink too much or just guys who transform in Sin City and decide to pick on fights with random people, usually ending with very bad results for them.
This is no exception as we can see a guy wearing a white shirt come down the stairs provoking another man. He starts yelling as he gets into his face, the man in the black shirt decides he is not having any of that and just unleashes a right hand to the chin and sends the provoker to the floor.
The man then decides to walk away and carry on with his day, but the guy on the floor chooses to get up and go after him. We can see the guy in the white shirt try to catch up to him as he continues talking to him.
The guy wearing all black stops to face the guy. The man in white proceeds to get all up in his face again and starts shouting. The line was crossed yet again so once again he takes a mean right hand to the chin and goes to the floor completely knocked out.