A DOCTOR IS WALKING IN HIS PSYCH WARD ONE NIGHT...

HE ENTERS THE ROOM OF TWO OF HIS PATIENTS AND SEES THE FIRST PATIENT HANGING FROM THE CEILING BY HIS FEET. HE RAISES AN EYEBROW TO THIS AND TURNS TO THE SECOND PATIENT WHO IS MAKING A FRANTIC SAWING MOTION ALONG HIS BEDSIDE TABLE. THE DOCTOR APPROACHES THE SECOND PATIENT AND ASKS,
"WHAT ARE YOU DOING?"
"OBVIOUSLY CUTTING A PIECE OF WOOD." REPLIES THE PATIENT DRYLY. THE DOCTOR NODS AND GESTURES TO THE PATIENT HANGING FROM THE CEILING.
"AND WHAT IS YOUR FRIEND DOING?" HE ASKS, NOTICING THE PATIENT IS BECOMING SLIGHTLY BLUE IN THE FACE.
"OH, HE'S PRETENDING TO BE A LIGHT BULB."
THE DOCTOR SAYS, "DON'T YOU THINK YOU SHOULD TELL HIM TO GET DOWN BEFORE HE HURTS HIMSELF?"
"WHAT," REPLIES THE PATIENT, "AND WORK IN THE DARK?"