Smitty was a heating and cooling technician. His assistant was a small
chimpanzee he had trained to do all the duct work. The chimp had no fear
of heights or confined spaces, and besides, he didn't have to be paid.
One day, Smitty got a call from a customer who said his air
conditioner had broken down. Smitty went over and discovered some
defective ducting. The customer asked if it would be hard to fix.
"No problem," replied Smitty, "I have a little duct ape that will take care of it!"