FIB - I've got a good "Is there a doctor in the house?" story.
Many years ago, while attending a punk concert, I heard that announcement. Having come to the concert directly from my residency, I was dressed in a demur peach turtleneck dress - in a sea of black leather. AS I worked my way to the security guards, people made comments like "They don't need a PhD, honey!". (This was before women MDs were as common as now).
The patient was a girl with a dislocated thumb, which I quickly fixed. The burly security guards looked at me with surprise and exclaimed "You really ARE a doctor!"
This story got me into another concert a year later by the same production company, when the performing band (friends) forgot to submit their guest list. Good karma comes around. :>)