I agree, some people are just violent, drunk or sober.
Also, as I have said on here before, using the unfortunate plumber who remonstrated with a two men for urinating on a car and got his head stamped on for his trouble.
He should have really crossed the road and let them get on with it, especially if it wasn't his car, or, gone up to the biggest one, laid him out and said "now stop pi55ing on peoples' cars"
If you are not prepared to be violent/aggressive, stay away, and learn to recognise those who are.