1. Your hangover the next morning

2. You might wake up with an ugly chick in a hotel room.

3. You'll probably wreck your car on your way home from the bar

4. Whatever your friends do to you after you pass out

5. Coming home late to an angry girlfriend, wife, etc

6. Stupid crap you do while drunk that will seriously injure you

7. Getting caught on tape doing stupid stuff by a total stranger and having them put it on the internet

8. Losing all of your money one way or another

9. Wandering into your neighbors yard and having them call the cops on you

10. Having to be dragged out of the bar by someone because you started a fight with someone for no reason