Watermelons

A farmer in the country has a watermelon patch and upon inspection he discovers that some of the local kids have been helping themselves to a feast. The farmer thinks of ways to discourage this profit-eating situation. So he puts up a sign that reads: "WARNING! ONE OF THESE WATERMELONS CONTAINS CYANIDE!" He smiled smugly as he watched the kids run off the next night without eating any of his melons. The farmer returns to the watermelon patch a week later to discover that none of the watermelons have been eaten, but finds another sign that reads: "NOW THERE ARE TWO!"

Using a Suppository

A guy walks into a pharmacy to pick up his prescribed suppository and asks the pharmacist how to use it. The pharmacist tells him that he should take it rectally, and the guy leaves, confused. After 10 minutes, he comes back in and and asks her again how to use the suppository. The pharmacist tells him to put it in his anus, and the guy still seems confused, but leaves anyway. After an hour, he calls the pharmacy and asks the pharmacist how to use the suppository again, and she tells him, "Grab the suppository and shove it up your ass!" The guy yells back at the pharmacist, "No need to be rude, you're just doing your job!"

Medical Professor Teaching a Lesson

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.''