I've had cases where people would glare at me, I do what I do best and smirk at them, that really grinds their gears.
When I was in school, there was a group that would walk past me and my friends and "insult" us, or do things to annoy us. One time, they sort of surrounded us and started mocking us, it's an uncomfortable position to be in, especially when these kids were taller and in a bigger group than you. I just told them to fuck off, a few insults slipped my mouth but hey, I'm just standing my ground. If people are going to give crap, expect it back.
So no, I don't take crap from people.
If you can't think for yourself, why are you alive?