An eighty year old man went to the barbershop and complained that his cheeks were too sunken-in and wrinkly to get a clean shave on them.
The barber reached for a metal ball and told the old man to put it in his cheek to smooth it out for a shave.
“Hey, that works terrific!” The old man said with the metal ball in his mouth. “But what happens if I accidentally swallow it?”
“Then just shit it out and bring it back here like everyone else does.”