My father-in-law is a plumber. He told me 98% of his customers are good people to do work for, the other 2% went like this.
Ran a snake (hand operated) in a ladies toilet to unclog a pipe. Gets a call from her the next day saying he "cracked" her tile floor and she wants a new floor installed. He told her "no attorney is going to find a plumber" who is going to testify that his unclogging a toilet cracked her tile floor. She calls him next day and says she was wrong and that she wants him to do more work for her, he said, I will not. Goodbye.
The other bad customer went like this. Installed three new drain piping in bathroom, offered to replace part of the bad floor for her no cost, she bought materials, did labor for free. She even picked out a new vanity, he installed it, after it is installed, she said, You know, this vanity looks cheap, I am having guests over and they will think you took advantage of me. He told that customer he didn't need her either...
