Top 10 O-House Pranks of 1989

OK - in light of this:
http://www.collegehumor.com/video:1774718

Followed by this:
http://withleather.uproxx.com/2009/03/greatest-prank-ever

I present to you, the Top 10 O-House Pranks of 1989:

1. Chewing up doritos and spitting them into Ed's bed
2. Smoking a cigar and exhaling into Scott's pillowcase
3. Making siren noises thru the air vet prohibiting Randy from sleeping
4. Taking the mattress off of Scott's low-rider bed, thus creating a serious injury risk upon his drunken return
5. Tilting a 50 gallon garbage can of water against Rosenthal's door and knocking...then running because it is also Randy's room.
6. Shooting bottle rockets under Eric & Todd's door
7. Calling the cops on dope-smoking Jonah
8. Taking the hinge pins off of Brian's door

All of these have just one thing in common...any guesses?