Q: How many nurses does it take to screw in a light bulb? A: None. They just have a nursing student do it.
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!"
A teacher was giving a lesson on the circulation of the blood. Trying to make the matter clearer, he said: “Now, students, if I stood on my head the blood, as you know, would run into it, and I should turn red in the face.” “Yes, sir,” the boys said. “Then why is it that while I am standing upright in the ordinary position the blood doesn’t run into my feet?” A little fellow shouted, “‘It’s because yer feet ain’t empty.”
One day a teacher asked the class, "What is the difference between a bird and a fly?" A student then replied, "A bird can fly but a fly cannot bird."
One day a medical professor and his class were standing over a corpse and the professor said, "There are two things to being a medical forensicist. First: Don't fear anything." After saying that, the professor shoved his middle finger up the corpse's anus and licked it. He then told the class to do the same. After hesitating, they all did it. "Next," the professor said, "you have to have a key observation finger. Thus, I licked my index finger."
Legendarily naughty Little Johnny sat in class quietly as the students were composing a poem with their teacher. When she asked for an F-word that rhymed with "duck" he waved his hand feverishly. The teacher frowned and passed him by. No kids, however, could offer her a solution. Finally she glared at Johnny and called on him. Johnny put on his devlish grin and said, "An F-word that rhymes with duck is...fluctuation." The teacher blurted out, "No Johnny, that's sucks! I'm so sick of telling you what a little frigging a**hole you are!"