it depends. all of the girls at the store i go to, they're great. some of them do have that heir of holier-than-thou at first, but it's all in people's perception of them. i love my MA's.
i think there's more a stereotype with the men that work at MAC. most all of the awful experiences i've had at MAC were with male MA's, and this sort of perturbs me because i am male and it should be something we might have in common: being a guy and wearing makeup, but 9 times out of 10 they look down their nose at me or act overly fake.
i try to avoid stereotypes, but sometimes i can't help but notice little consistencies. these guys, usually have some over-styled edgy haircut. too much clear lipgloss is usually involved in their overall makeup look, with over-plucked eyebrows and perhaps some foundation that is caked into the skin where a beard would be growing. i'm as understanding as i can possibly be for why someone would be so rude just because they are behind the counter, looking through drawers and wearing a brush belt and i have a shopping list and a few questions. but when ANYBODY acts rude to you, you seem to remember all the negative things about their appearance to correspond with the negative things you saw in their personality.