How did you (and other people you know) change after going to college?

[Reasonable]

It was a while back, but at University in my first year I partied so hard I had to retake 4 out of 5 exams to stay on my course! Mind you after than I made sure I passed with flying colours.

I think that, depending upon your childhood, College or University marks a big change in your ability to define yourself and rebel (if you feel they need).

I wouldn't worry about feeling some are going to far or losing their cool. Just don't let yourself feel closed out from having fun as well as learning.