'Elderly Wit' or A Man Once Told Me...

An old man, Mr. Smith, resided in a nursing home.

One day he went into the nurse's station and informed the staff his penis died. Realizing that Mr. Smith was old and forgetful, the staff decided to play along with him. "It did? I'm sorry to hear that," one replied.
Two days later, Mr. Smith was walking down the halls at the nursing home with his penis hanging outside his pants. A nurse saw him and said, "Mr. Smith, I thought you told me your penis died." "It did" he said. "Today is the viewing."