Top twenty-five differences here between high school and university (or college as the Seppos call it). My favourites:
22. In college, the professors can tell you the answer without looking at the teacher's guide.
13. In high school, when the teacher said, "Good morning," you mumbled back. In college, when the professor says, "Good morning," you write it down.
11. In college, weekends start on Thursday.
4. College women are legal.
[Hat tip Stephen Hicks.]