Recently I rented a large pick-up truck from Enterprise to move some furniture. It was a brand new truck - 202 miles on it - but it did have a few very minor scratches in the paint that I pointed out on the walk-around. The clerk said "Oh, those are so small, we don't need to note them." and I replied, after the very heavy pressure to buy supplemental coverage in case of "scratches or marks to our new truck" that "YES, you do need to note down every one of these marks now, and I want a copy of the form with the notations."

I don't know if she was just lazy or prepping me to pay for someone else's scratches, but I made sure every single mark was noted in advance, and had no trouble at when I returned the truck.