Tears of the oldie

An old man is sitting on a park bench crying and a passer by asked him what was wrong.

The old man looking up with tears in his eyes sobbed "I'm 92 years old, I have a gorgeous 28 year old girl friend who cooks for me and buys me presents, makes love to me four times a day every day and is passionate in bed."

The passer-by replies "What the hell are you crying about then?"

The old man answers

Spoiler:

"I've forgotten where I live!"