I remember seeing a very funny, but also very sobering routine by Ben Elton about smear tests.
"I know what you think lads, here you are, a bit of cotton wool, swipe, analyse that!"
All the women in the audience were shrieking with laughter by this point, as Mr Elton continued.
"But no, what acutally happens is, they go the the chiller cabinet and take out a piece of equipment the size and dimensions of a Ford Cortina, and put that in, and then it has a metal mouth with teeth that bites a bit off you!"
I remember being really amused at the way this was put over, but also chastened that as a married man with three daughters, I actually had no idea how a smear test is actually conducted - and I am sure that even now, I am far from alone in that.