VD

A worried father telephoned his family doctor and said that he
was afraid that his teenaged son had come down with V.D.
"He says he hasn't had sex with anyone but the maid, so it has to
be her."
"Don't worry too much," advised the doctor. "These things
happen."
"I know, doctor," said the father, "but I have to admit that I've
been sleeping with the maid also. I seem to have the same
symptoms."
"That's unfortunate."
"Not only that, I think I've passed it to my wife."
"Oh God," said the doc, "That means we all have it."