Not sure if this has ever been mentioned before ---- but there is a hidden code in the "Hot for Teacher" video that spells out "HOLY SHIT" on the chalk board behind the sexy teacher.

It's a simple substitution cipher where every letter has it's corresponding number ---- A=1, B=2, C=3, etc. If you watch the scene at the beginning where the hot babe comes out and prances back and forth on the stage ---- you will see numbers written on the chalk board. Using the cipher, here is what it spells (read backwards from right to left):

20 = T
9 = I
8 = H
19 = S

25 = Y
12 = L
15 = O
8 = H

Dave was definitely behind this. Wonder why he never mentioned this clever idea in his book? It's fucking genius ---- and I think it was his own snide way of getting back at censors ---- like the ones who banned "Pretty Woman" from MTV.