A man goe to the barber. While in the chair, he mentions thathe has trouble getting his cheek really smooth.
"No problem!" said the barber, "Just pop this little wooden ball between your cheek and gum while shaving, look, I'll show you"
The barber pops the ball in the man's mouth and shaves him smoothly over the cheeks.
"This is the loaner, take it and try it yourself tomorrow and, if you like it, I'll order you one"
"Great" says the customer,"but it's a bit small, what do I do if I swallow it?" "No problem, just bring it back the next day, like everyone else"

Walrus