At clinicals one day in my last semester...
Had orders to Foley an elderly gent. But we couldn't get it, and after several phone calls, the urologist decided to come in to figure it out.
Turned out the Pt. had a "blind passage, " and that's why our efforts were futile.
We --nurses, Pt, and student--watched in fascination and horror as the Doc, with obvious glee, picked up this thing that looked like a wire coat hangar, took aim, quipped, "Now, don't try this at home, folks,"

and in one sweeping motion, threaded the Foley in using the "coat hanger " as a guide.
Pt. insisted he felt no pain, but I cringe whenever I think about the poor fella--and I'm a girl....