Reminds me of this medical joke I once heard:
An off-duty anaesthetist is on a long-haul flight from Heathrow to LAX with his wife and two young children, seated in the economy class, getting ready for a nice holiday. At one point the PA sounds off, with the head flight attendant announcing, "This is a passenger announcement. If there is an anaesthetist on board, could he or she please make their way to the first class compartment as soon as possible please."
The anaesthetist turns to his wife who assures him, "Don't bother, darling, we're on holiday, and who's to know you're here anyway?" So the anaesthetist stays in his seat and enjoys some complementary peanuts.
Five minutes later, the PA sounds off again with the flight attendant saying, "This is a passenger announcement. Could an anaesthetist please report to the first class area as soon as possible please, as one is required there as a matter of urgency."
Again the anaesthetist's wife says "No, darling, you're on holiday, you're here to relax, not get embroiled in work." So the anaesthetist again stays in his seat, and opens his Top Gear magazine and begins to read.
Five minutes later again, there is another announcement: "Ladies and gentlemen, this is your captain speaking. I have an urgent request from First Class asking for an anaesthetist to be present immediately. If anyone with any anaesthetic experience is on board, please make their way to the First Class compatment immediately."
The anaesthetise, now becoming more nervous, thinking he may be missing something very important or life-threatening, says to his wife, "Don't worry, honey, this won't take long," and gets up to make himself aware to the nearest stewardess, who then escorts him to the First Class compartment.
The anaesthetist arrives at the First Class lounge where everything seems perfectly normal. The stewardess then ushers him towards one of the passengers - a man in a bespoke suit, lying down in his reclining chair, trying to read his copy of the American Journal of Orthopaedics while clutching his programme for an international surgical conference in Los Angeles.
"Here is the orthopaedic surgeon who wants to speak to you, sir, " said the stewardess to the anaesthetist, before leaving.
"Ah, " the surgeon said, "you must be the anaesthetist."
"Yes, " the anaesthetist said, "is there a problem?"
The man in the suit replied, "Yes. Could you adjust the light for me please?"