This Zen Buddhist Monk walks up to a hotdog stand and says to the vender, "Give me one with everything".
So the vender makes him a hotdog with everything, hands it to the Buddhist Monk.
The Buddhist gives him a twenty dollar bill, the vender takes it, puts it in his cash register and shuts the door.
The Buddhist says, "Wait, where's my change?"
The vender replies, "Change must come from within".