While he was buying a pack of condoms at the drugstore, the young man remarked to the cashier with a smile, “I’m giving my girlfriend a birthday present tonight”.
“Yes, sir”, the cashier said with a smile.
Then, forcing a straight face, the cashier added, “Would you perhaps like these gift-wrapped?”
“That wouldn’t make much sense”, the young man replied, “they are the gift wrapping”.
Image used under a Collective Commons License from: https://commons.wikimedia.org/wiki/File:Box_of_40_Trojan-ENZ_condoms.JPG