Joseph, I read with eager interest your woeful toilet tale. Listen, if you eeeeever come to Europe...:) Well, I wouldn't put you to work on the toilet, so don't worry.
I was thinking that if the guy argues with you about giving you back your money, you could threaten to go to the better business buro.
I have a dental tale that I should share along the same lines. It has nothing to do with toilets, but crooks posing as "authorities" on the matter.
Glad you won that round!