I had a bowel screening a couple of weeks ago. Found it a bit uncomfortable feeling the thing moving up and around, then they started lifting legs around and had me in all sorts of positions in an attempt to find daylight. I fucked it off after about 15 mins but they got far enough to find a couple of 2mm polyps which were snipped off and came back as clean. Didn’t fancy my arsehole being on tv so I skipped the entertainment package.
The sedative offered was some sort of happy gas which was trippy as fuck. There were 3 nurses in the room, one with the miners helmet lamp, one on the monitor looking for old bikes and shopping trolleys and one who holds your hand.
An odd experience but worthwhile imo and the nhs staff were top notch.