A man goes to the doctor for a checkup. As the nurse is leading him down the hallway to the examination room, he glances into a room on the right hand side of the hallway. In there, a man is standing, pants to his ankles, tool in hand, feverishly masturbating.

"What on earth is wrong with that guy?" the man asks the nurse.

"Oh, he's got spermatosis. It's a rare disease in which the symptoms can cause frequent masturbation.”

As they continue down the hallway, the man notices another room in which there is another man with his pants to his ankles, only this man is having oral sex performed on him by a beautiful nurse.

"Now what on earth is wrong with that man?" he asks the nurse.

"Oh, same thing,” says the nurse, "He's just got better insurance."

DB.