A dentist, an electrician, and a carpenter decide to play a
practical
joke their best friend on his wedding night.
"I'll loosen some joints on his bed so it collapses when he's
making
love," says the carpenter.
"I'll hot wire his mattress so they'll feel immense heat while
making
love," says the electrician.
"Those are good ideas," says the dentist. "But my contribution's
going
to be a real surprise."
The next day the new husband comes to the diner to meet his
friends. He
says "I congratulate you guys for making the bed heat up and
collapse,
but I'm gonna kill whichever one of you put novocaine in the
massage
oil!"
Psst! For those not in the know... novocaine is an
anaesthetic. You cannot feel a thing! ;)