A guy walks into a post office one day to see a middle-aged, balding man standing at the counter methodically placing "Love" stamps on bright pink envelopes with hearts all over them. The man then takes out a perfume bottle and starts spraying scent all over them.
His curiosity getting the better of him, he goes up to the balding man and asks him what he is doing.
The man says, "I'm sending out 1,000 Valentine cards signed, 'Guess who?'"
"You actually know that many women?" he asks, amazed.
"No," says the mad mailer. "I don't know any of them."
"Then why spend so much to send so many expensive cards?" asks the man.