1) You still have some nasty unpaid library fines.
2) Its being catered by Doris and the gals from the cafeteria.
3) You can't bring weapons.
4) Remember that dorky guy who sat in front of you during Algebra class? He owns Microsoft.
5) You're petrified over that mandatory Algebra exam between dinner and dessert.
6) Your prom date is STILL looking for you.
7) You didn't like these people ten years ago and you sure aren't going to like seeing them dance to some crap like "Venus"
8) The other person in your class was a real dork.
9) You don't want people to know that you married the girl Voted Most Likely To Fester.
10) You don't to hear someone say "Honey, you're going to spend the next 10 years with your REAL father!!"