Anyone have extremely stupid neighbors?

Had a neighbor kid ask me how much it would cost to paint his car..So I gave him an items list with teh paint, thinner..ect. He calls me 2 days later and says he had all the stuff. I asked him if he was sure he got the right kind of thinner for lacquer and he tells me and Im paraphrasing a little "Naw man..I just went ahead and mixed it in a bucket with water..that's what my grandpa always did with his show cars" -_-