Desculpa, mas essa só funciona em inglês:

The Zen Master is visiting New York City from Tibet. He goes
up to a hotdog vendor and says, "Make me one with
everything."

The hot dog vendor fixes a hot dog and hands it to the Zen
Master, who pays with a $20 bill.

The vendor puts the bill in the cash box and closes it.
"Where's my change?" asks the Zen Master.

The vendor responds, "Change must come from within."

Genial, não? Veio do Joke a Day.