The following joke contains slightly naughty content.  If you don't want to see that type of joke, stop reading now...

Moshe Levy is lying in bed in a Tel Aviv hospital wearing an oxygen mask tightly over his mouth and nose. A young student nurse soon appears and gives him a partial sponge bath.

"Nurse," mumbles Moshe from behind the mask, "are my testicles black?"

Embarrassed, the young nurse replies, "I don't know, Mr Levy. I'm only here to wash your upper body and feet."

Moshe struggles to ask again, "Nurse, please check for me. Are my testicles black?"

Concerned that Moshe might elevate his blood pressure and heart rate from worrying about his testicles, the nurse overcomes her embarrassment and pulls back the covers. She raises Moshe's gown, moves his manhood to one side, looks very closely at his testicles and says, "There's nothing wrong with them, Mr Levy. They look fine."

Moshe looks at her for a few seconds, then slowly pulls off his oxygen mask, smiles at her, and says, very distinctly, "Thank you very much nurse. That was wonderful. You have very soft and silky hands. But now listen very, very carefully to what I'm saying: Are - my - test - results - back?"