My GF's brought her car in to a Tire Kingdom to get the brakes/rotors replaced. 2 months later the car was making a horrible squealing noise, so we brought it back. The rotor were worn down and warped. The tech said that it was probably caused by driving through a puddle while the rotors were hot, that the cold water would cause them to warp. I called BS. Then he claimed the rotors got worn out because we lived in a hilly area and the hills caused extra stress. Again called BS. I told him they never replaced the rotors in the first place and he knows it.
I ended up getting the regional manager involved and they replaced the rotors/pads and refunded all my money.