Sandwiches a Night

Two college roommates are about to go to bed. The guy in the top bunk has his girlfriend sleeping over. To try and keep quiet, they devise a code. His girlfriend will say "tomato" if she wants him to go slower and "lettuce" for him to go faster. As they begin to have sex, the girl starts to moan, "Lettuce, lettuce, tomato, tomato!" The roommate on the bottom bunk wakes up the next morning and says, "Stop making sandwiches at night. You got mayonnaise in my eye!"

Tardy Attention

A college business professor could not help but notice that one of his students was late to class for the third time that week. Before class ended he went around the room asking students some questions about the day's lecture. Of course, he made sure to pick on his tardy pupil. "And who was it that developed the theories behind communism?" the professor asked. "I don't know," the student said. "Perhaps if you came to class on time, Mr. Reebs, you would know," said the professor. "That's not true," the student replied. "I never pay attention anyway!"

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!"