Rentals

I'm not going to project an attitude or motivation on them but one way that vehicle rental companies take advantage of, intentionally or unwittingly, your carelessness or haste or lack of attention is by not doing the walk around with you (I've seen this more with cars. They still do this with rental moving trucks in my experience). If they and you do not do this, you can return the car (incident and accident free) and find yourself with a damage claim on your hands.

Insist they do and if they won't but you are stuck renting there, insist on a means to agree on existing damage ... because there will likely be exisiting dings or scratches. We ended up writing on a car rental agreement and having it signed by the lot attendant. Get their signature and printed name (first and last). If they don't stand behind their product with their name, complain and/or go somewhere else.

Anyway, I think most people are trying to cover their bumper, so you have to cover yours.