“Open wider. “requested the dentist, as he began his examination of the patient.
“Dear God!” he said, startled.
“You’ve got the biggest cavity I’ve ever seen – the biggest cavity I’ve ever seen. “
“OK Doc!” replied the patient. “I’m scared enough without you saying something like that twice. “
“I didn’t!” said the dentist. “That was the echo. “
This joke is included in the Black Book of Jokes. You can order it from here.