I recently had a home owner call me to wire a bathroom for them, but they couldn't wait for me to do the rough. When I got there to look at the work they had run 12 for everything and had several thin boxes probably 8c.u.)with 3 pieces of 12/2 in each, no staples on the wires, the wires going to lights did not have romex connectors and the whirlpool tub and GFI outlets were all on the same circuit used for the lights. I had to tell them that if they want me to make the connections for them, they would have to redo everything they had done. It insulted them, but they did understand it was for their safety and my liability.
Worse than homeowner wiring is the stuff I see from "handy"men. At least the homeowner is concerned with the safety. (I've got some great pictures of this)
