It is considered uncivil to not leave when asked to.
Colt went to a bar, but the employees didn't want him inside since he was wearing a t-shirt with Che Guevara on it.
Colt wants to drink some beer.
Colt decides to leave and go to another bar instead.
Colt decides to stay at the bar because he doesn't want to go elsewhere.
The people in the bar relax, and Colt's life is not in danger.
Colt creates a hostile environment in the bar, and he risks his own life.