Originally Posted by Often1

In this day and age when pretty much all phones have a camera, doing either a video or multiple shots of the vehicle before driving it off the lot [and after returning it] is an absolute necessity. Going through the process also helps one to identify the defects and then deal with them as well. Arguing after the fact about the reasonableness of the cost of repair is a lot harder and more time-consuming that simply eliminating the claim in the first place.

All of this is, of course, eliminated through proper comprehensive insurance wherein one simply turns the claim over and is done with it.