I do (did - I'm trying to get Ian_Giles to do it) a Hilton Hotel. At Christmas the manager asked me, for their staff Christmas function, if I'd send a letter for their raffle. The letter I would send would state that we would clean the inside and outside of the winner's house for free.
'Nurse, nurse, my pills, quickly', I shouted, thinking the winner could possibly live in some distant mansion that would take half a day to find, and the other to clean.
I declined saying I would donate a bottle of whiskey and a 2005 diary with my business name and details inscribed (I'd been sent a freebie in the post and asked if I'd like to buy fifty of them (minimum order)).
The next day a customer gave me a quality bottle of whiskey, a 12 year old Glenfiddich! Guess who got it? The Hilton.
Not one of the staff has since come forward to thank us for their prize. Tightwad, who-ever won it!