Things you don't want to see from the vantage point of a dental chair

— or — Why pay for dental school when you can be a stand-up comedian?

Blue scrubs, face mask and all, Dr. McKenna re-enacted a scene from the Wiggles before my check-up. Wra-wra-wra, sound effects, hand motions, funky dance and everything.

Can you say "captive audience"?