#4 the right answer, but many people jump to aggression. I clearly remember in college where I was pushed into a rather built gentleman while holding two drinks

#4 the right answer, but many people jump to aggression. I clearly remember in college where I was pushed into a rather built gentleman while holding two drinks in a crowded bar. He was immediately ready to drop everything and fight about it. But backed down immediately with a simple, "Hey, sorry man." There's a certain class of person who would just keep escalating.