Zen and the Art of Hot Dogs

A nice little "joke" about Zen and hot dogs that was mentioned by Christopher Hitchens:

Did you hear the one about the Zen Master who said to the hot dog vendor, "Make me one with everything?"
The hot dog vendor hands him one with everything. The Zen master hands him a $20 bill and the vendor pockets it.
"What about my change?" asked the Zen master.
The hot dog vendor says, "Change comes only from within."