An art collector is walking through the the city when he notices a mangy cat lapping milk from a saucer in the doorway of a pet store.
He recognises that the saucer is extremely old and very valuable, so he walks casually into the store and offers to buy the cat for £10.
The store owner replies “I’m sorry, but the cat isn’t for sale” the collector says, “Please, I need a hungry cat around the house to catch mice, I’ll pay you £50 for that cat” And the pet shop owner says “Sold”.
Then the collector turns and says “Hey, for another £10 could you throw in that old saucer, the cat’s used it and it’ll save me from having to get a new one"
The owner replies, “Sorry pal but that’s my lucky saucer, so far this week I’ve sold 68 cats”.
Baa Dum Tish...
I'll get me coat...