A conversation in a 19th century Paris bar on the Left Bank. It's 20 minutes after closing time...
An absinthe-fuelled game of "most stupidly useless instrument we can think up" has been in full swing since lunchtime....
"OK, Pierre, your go."
"Erm..... how about a huge bass fiddle that needs a wagon to carry it and plays so low you can't hear the notes?"
"Non, non, too silly. No-one could make such a thing"
"How much do you bet?"