Had a certain procedure in the groin area fifteen years back. No catheter, no special underpants, in fact none at all, wore the standard hospital gown, and no shaving ahead of time (although I did shave my face for the day). Apparently they shaved what they needed after I was under; a case of "now you see it, now you don't" patch of hair after I came to in the recovery room.
The best part was the pre-gas "Martini up the arm" shot through the IV as my anesthesiologist put it. Damn, that felt good. Probably some kind of morphine relaxant, I felt like breaking out in song to Pink Floyd's "Comfortably Numb."
"There is no pain, you are receding
A distant ship, smoke on the horizon
You are only coming through in waves
Your lips move but I can't hear what you're saying
When I was a child I had a fever
My hands felt just like two balloons
Now I've got that feeling once again
I can't explain, you would not understand
This is not how I am
I have become comfortably numb..."
(Cue the epic David Gilmour guitar solo)