An old man walks into a barbershop

An old man walks into a barbershop for a haircut.
When the barber is getting everything ready, the old man says to the barber:

“You know, no matter how hard you try, you never get all the hair off because my cheeks are all wrinkled.” The barber produces a little wooden ball from a cup. He

hands it to the old man.
“Here, this will spread out a cheek.”

When the barber is finished the old man is beaming.

“Wow, this is the cleanest shave I’d in years, but I happened to have accidentally swallowed the little ball?”

The barber replies.
“Well, that’s not a problem. If you would bring it back in a couple of days as everyone else does.”