The Buddha, and a face full of spit.

There is a story that the Buddha was lecturing a group of interested people, and one man in the crown heckled him, asking obtuse questions, mocking, even directly insulting. Finally, the Buddha paused. “Excuse me, sir. You have asked many questions, and I have attempted to answer. I would now like to ask you a question.”

“Sure,” the guy smirked.

“Very good. If someone offers you a present, and you decline to accept it, to whom does the gift belong?”