Jose and Carlos are both beggars. They beg in different areas of town
Carlos begs for the same amount of time as Jose, but only collects about eight or nine dollars a day.
Jose brings home a suitcase full of ten dollar bills every day. He drives a Mercedes, lives in a mortgage free house, and has a lot of money to spend.
"Hey, amigo," Carlos says to Jose, "I work just as long and hard as you do, so how come you bring home a suitcase full of ten dollar bills every day?
Jose says, "Look at your sign, what does it say?"
Carlo’s sign reads "I have no work, a wife and six kids to support."
"What’s wrong with that?" Carlos asks him.
"No wonder you only get eight or nine dollars a day!"
Carlo’s says, "All right, what does your sign say?"
"I only need ten dollars to get back to Mexico".
[H/T Kevin N]