This was not mine (sadly), but was told to us by somebody we knew a long time ago, overheard when he was at a big gathering in Liverpool, said very matter-of-factly; I've never forgotten it, though.
Just in case anybody doesn't know, scouse (short for lobscouse) is the name of a popular local stew, from which Liverpudlians originally got their nickname. Emphasis added by me:
"Yeah, I was working at this do; it was disgusting - somebody crapped in the scouse and we had to throw half of it away!" 
The best I can do myself is when we heard a group of 'refreshed' lads on a train in North Wales. One of them nonchalantly said "So, we were in this pasty shop, right, having a pasty fight and........" - as though that was a perfectly normal everyday thing to do in such an establishment!
He didn't get to say much more, as he got distracted by somebody pressing the button that made the doors slide open, and was commenting on how it was just like on Strike It Lucky, where you hit the button to see what prize you've won. The door opened and he saw the station sign and immediately shouted "HOT SPOT, Prestatyn - wooowooowooowooowooowooowooo!!"