Man in hospital bed wearing oxygen mask over his mouth and nose. "Nurse" he mumbles "are my testicles black" ? Nurse raises his gown, holds his manhood in one hand & his testicles in the other. She takes a close look and says "There is nothing wrong with them sir". Man pulls off the oxygen mask, smiles at her and says very slowly "Thanks for that, it was wonderful but listen very, very closely and carefully ................ Are - my - test - results - back ?