I remember hearing a monologue (don't know the title) that started:-

"I had a pal, his name was Jim, his fate was hard to bear
For every other word he spoke, he couldn't help but swear"

The gist of the story is that his language was so bad they locked him up, but then he took to writing "rude words" on walls. That became such a problem that a warder was assigned to follow him round with a sponge and wipe off his graffiti.

The last line I seem to remember went:-

"There's fifteen "damns" and a "devil" in front, and the warder's lost his sponge!"

It all seems very mild today, when you compare it with the language you hear on a bus full of schoolkids!

Anyone help?