We do judge people around us. I for example personally think that the guys with so metro sexual look was nothing but gays and the girls with show-more-skin-than-cloth-style puffing cigar was a bitch. Negativism.
Remember this 'don't judge the book by it's cover'. Can we still use that?
Nowadays first impression always come on top. Try go to your interview with fuck-face look. I'm sure you'll be doomed before you heard your name being called. Unless you applied for the cast-away role. Shit.
I always simplify 'Get out of here and leave me alone' by saying Fuck Off.