Sorry if you guys don't find this funny, but it made me smile the first time I read it.
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A man is walking on a beach and finds a magic lamp. He rubs it and a genie comes out. The Genie says, "Alright, I'll grant you three wishes. But remember, I'm a lawyer's Genie. Whatever you wish for, lawyers get double."
The man thinks for a moment. "Okay, I want a ten million bucks." The Genie reminds him, "Alright, but lawyers will get twenty million." And poof, ten million bucks appear.
The man thinks again. "I want a Ferrari." The Genie says, "Okay, but remember that lawyers will get two Ferraris." A Ferrari appears before the man.
"This is your last wish. Lawyers get double, remember," says the Genie. The man thinks hard for a few minutes.
"Well, I've always wanted to donate a kidney."