At my school, the staff were more lenient about uniform policies with the popular kids. Then again:
a) a lot of the popular girls have blossoming modelling and/or acting careers, so some male teachers might see them as carrying the 'short skirt' look well.
b) they suck up to teachers - act extremely friendly to them, even chat them up etc. The teachers may know how much of a lot of divas they actually are but don't want to get on their bad side.
c) they seemingly have rich mums and dads who can pay their way out of trouble
Similarly, the very smart students do no wrong in teacher's eyes so are always picked for leadership roles regardless of their actual ability to carry on such role.
A lot of the older teachers seemed to have seen through the guise though.
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I'm sailing across Spectrum Sea, in my little boat.
The waters of the port were choppy. After I set off, there was a long, massive storm.
Years later, however, the sea calmed. I'm still on tranquil sea, but I'll never reach the Neurotypical Beach.