Secret To a Close Shave

An old man walks into the barbershop for a shave and a haircut.  “I have to warn you,” he says.  “You won’t be able to give me a clean shave because my cheeks are so wrinkled from age.”

“No problem!”  The barber gets a little wooden ball from a cup on the shelf.  “Just put this inside your cheek.  It will spread out the skin.”

When the barber finishes, the old man is amazed.  “That’s the cleanest shave I’ve had in years,” he tells the barber.  “One thing worried me, though.  What would you have done if I had swallowed that little ball?”