"miztvah merchant" joke
one day a travel merchant looks out his window and sees an old lady and old man schlepping bags of shopping in the rain.the merchant feels sorry for them and thinks "i'll do my mitzvah of the day and give the couple some tickets to barbados".
so he gives them their free tickets and they go on their cruise to barbados.
next week the old lady comes in and says to the merchant "thankyou for the free ticket, i really enjoyed myself.just one thing though.who's the old man?"
Moshe is driving around in a car park, but to his dismay, he cannot find a parking space. He drives around for half an hour then looks up to the heavens and says:
"Excuse me? It's Moshe. G-d I really need your help. I can't find a parking space. I promise if you find me more...