Shlomo and Sidney are walking home late one night when they see a crowd of drunken hoodlums coming toward them.
“Sidney,” says Shlomo, “do you known that $500 you lent me recently?”
“Yes,” replied Sidney.
“Well,” said Shlomo, “here, you can have it back now.”
From Oy! The Ultimate Book of Jewish Jokes, by David Minkoff