Joe has been seeing a psychoanalyst for four years for treatment of the fear that he had monsters under his bed. It had been years since he had gotten a good night's sleep. Furthermore, his progress was very poor, and he knew it. So, one day he gave everything up; he stops seeing the psychoanalyst and decides to start drinking till death.
Surprisingly, a few weeks later, Joe's former psychoanalyst meets his old client in the supermarket, and unexpectedly finds him looking well-rested, energetic, and cheerful.
"Doc!" Joe says, "It's amazing! I'm cured!"
"That's great news!" the psychoanalyst says. "You seem to be doing much better. How?"
"I met a friend of mine," Joe says enthusiastically, "and he cured me in just ONE meeting at our local bar!"
"Cured you in only ONE meeting???!" the psychoanalyst asks incredulously.
"Yeah," continues Joe, "my friend is an engineer."
“An engineer?" the psychoanalyst asks. "How did he cure you in one session?"
"Oh, easy," says Joe. "He told me to cut the legs off of my bed."