Never jerk off before a final exam.*

I got to my history exam 30 minutes late.

Luckily, my professor wanted some students to act a play before the exam so I didn't miss any actual exam time.

*Orgasms make you sleepy. Sleepiness + Thirty minutes to exam time x An All-Nighter spent reading an impossibly boring subject = Passing out and waking up fifteen minutes after exam has already started.