I'm the postmaster for a small town in Pennsylvania. One of my regular customers, Jeff, bought several sheets of newly released commemorative stamps.
Soon after he left, a woman came in carrying two crisp sheets of Harry Houdini stamps she'd found in the parking lot.
The next morning, I gave Jeff the sheets of stamps he'd lost. "You know," Jeff said to me, "I'm not at all that surprised the Houdini stamps reappeared."
Translator
These jokes are of an unknown origin. Feel free to submit corrections or add to the list. I will edit when possible, to improve the flow and correct errors.