What does the Buddhist say to the hot dog vendor?

"Make me one with everything."

The vendor makes him the hot dog and the Buddhist hands him a $20 bill. The vendor hands him his hot dog and then the Buddhist sits down at a nearby table to enjoy it. Soon after, to the Buddhist's dismay, he realizes the vendor hasn't been forthcoming with the rest of his money. He knows the hot dog couldn't have been $20, so the Buddhist approaches the vendor and says:

"Excuse me, where's my change?"

To which the vendor replies:

"Change comes only from within."