^ So, because your mate is a fucking retard on E (I'm giving him the benefit of the doubt that he's not like that the rest of the time), you assume it's the same shit for everyone?
Rolling in school is like rolling at work... Personally, I think it's worth trying, but the setting is just not right, and you can't do what you want to do. I used to roll in high school quite a bit, just because I hated that place and loved rolling, but it was always the same - I would wind up leaving sometime shortly after my peak, start feeling bad about a "wasted" roll, and pop another pill, out of the school now.
That, and acid, I think are somethings that are at least worth trying once, though they wouldn't be good day-to-day drugs. I didn't trip 'cid in a classroom until college, can't say it was a bad experience.