The Evils of Marijuana

A certain college professor was notorious for getting off the topic of the lecture, and on to his favorite subject: the evils of marijuana.  Off he went one day into his inventory of horrors, "Used regularly," he explained, "pot can cause psychic disorientation, sterility, cancer and castration!"
"Now wait a minute, professor," interrupted a student. "Castration?  That's absurd!"
"Yes young man, it's sadly true." replied the professor smugly.  "Just suppose your girlfriend gets the munchies!"

Prime Weed

Q: What do prime numbers and stoners have in common?
A: The higher they are, the more spaced out they get.

Officer Termination

An officer was fired for smoking weed and masturbating on the job.
No exact details were given to the public, but word has it that he was a high wanking officer.