If we hadn’t researched the stud that held that screw that broke and made the wheel fall off [camera pans over handwritten records], the insurance company never would have paid.

The original has way more “for want of a nail” steps than I managed to reproduce here. I’m serious about “best”, it totally sucked me in. But it’s local, so I can’t link it. Although I would totally not be surprised if it were a generic ad sold to a bunch of companies that then just throw their own shot in for a last half-second that looks totally disconnected to the previous 30 seconds, and lower production quality.