In high school, you can't go out to lunch because it's not allowed whereas in college, you can't go out to lunch because you can't afford it.

Little Johnny's Chemistry teacher wanted to teach his class a lesson about the evils of liquor, so he set up an experiment that involved a glass of water, a glass of whiskey, and two worms. "Now, class. Observe what happens to the two the worms," said the professor putting the first worm in the glass of water. The worm in the water moved about, twisting and seemingly unharmed. He then dropped the second work in the whiskey glass. It writhed in pain for a moment, then quickly sank to the bottom and died. "Now kids, what lesson can we derive from this experiment?" he asked. Little John ... read more

A linguistics professor was lecturing to his class one day. "In English," he said, "A double negative forms a positive. In some languages, though, such as Russian, a double negative is still a negative. However, there is no language wherein a double positive can form a negative." A voice from the back of the room piped up, "Yeah, right."

One day our professor was discussing a particularly complicated concept. A pre-med student rudely interrupted to ask, "Why do we have to learn this pointless information" "To save lives." the professor responded quickly and continued the lecture. A few minutes later, the same student spoke up again. "So how does physics save lives?" he persisted. "It keeps the ignoramuses like you out of medical school," replied the professor.

Teacher and her 3 boy students: Teacher: “Why did you laugh?” Boy 1: “I saw a strap of your bra.” Teacher: “You are punished to stay out of school for one week.” Boy 2 laughed… Teacher: “Why did you laugh?” Boy 2: “I saw your bra straps.” Teacher: “You are punished to stay out of school for one month.” Teacher bent down to pickup a chalk. Boy 3 started walking out of the class… Teacher: “Why are you leaving?” Boy 3: “I think my school days are over.”