So, I issued a challenge on the Mrs Hudson's Kitchen Challenge thread - then decided I would take up the challenge myself.
And it started thus...

xXx

A sociopath, a doctor, and a Detective Inspector walk into a strip club to investigate one of the dancers.

Well, when I say walked in, it would be more precise to say that the doctor and the Detective Inspector hustled the sociopath into the club, deeming that he needed to understand this particular male rite of passage for him to accurately deduce the dancer's motives.

Looking flustered, and decidedly hot under the collar (well, he would keep that bloody greatcoat on!), Sherlock protested for the umpteenth time.

"This is ridiculous! Why must I be here?"

"To understand why?" suggested Lestrade.

"To get the full picture?" offered John.

"I can do that by observing the clientele as they enter and leave…"

"Ah, no." John shook his head emphatically. "Observing from the outside won't allow you to fully understand why this is every teen boy's idea of heaven, and every middle aged married woman's idea of hell."

Sherlock frowned.

"Well, it's unlikely to happen to you," Lestrade explained as they took seats at the only vacant table. "But some guys get the mid-life crisis bad."

John grinned and headed to the bar.

He'd only been gone a moment when he heard an unmanly squawk.

Turning, he saw the sociopath dump a dancer off his lap and run.

"Sherlock!" he yelled, laughing. "Come back!"