i would say university, but i went into it knowing it would be shit. all i can say is i'm glad i'm only paying 3 grand a year, not 9 like the next year of suckers.
the social aspect of it too. might be because i'm only properly comfortable around those who i already know, but i sure as hell didn't make many friends in university (so far). i do actually think i had much more fun in school. but then i realise that i am now much more free, so i get to spend more time actually having fun, not having fun in a shitty environment.
also, people. they are generally a disappointment. so many people are just, douche.