I'd advise you to get on this guys good side, by getting him a beer. Also, do not tell him wtf to do. Ummm, and when he tells someone to fuck off, they really ought to.

for the rest of the story: https://youtu.be/SfRJF9lIu2k

I do believe this illustrates the idea, and teaches the lesson, that there are some people you just DO NOT get into a issue with. Even better, leave people the hell alone. You'll sleep better at night, every night, and spend a lot les time in the hospital, apparently.