This will be short and to the point. My daughter was the victim of a rental car con game and I just can't let it go without warning potential victims. Recently she rented a car from Enterprise in Phoenix and declined insurance. When she and her husband carefully looked the car over as much as possible as it was after dark, no damage was apparent. When she returned the car, an agent looked under the rear bumper and found a 2" scratch in the clear coat that was not visible unless one got down on hands and knees. Enterprise insisted on filing a claim and charged the credit card $250 before they were allowed to leave and catch their plane. Fortunately, my daughter has a credit card that covers rental car damage as one of the benefits. I don't know if this practice is widespread or even if it is common with Enterprise. I have never had rental car issues, but I'm concerned that the rules of the game may be changing.
UPDATE: Check out the comments to see the response by Enterprise. I was surprised to see this, especially since it was late at night. The good news here is that there is some attention paid to social media by corporations. The best outcome would be if other rental car companies are also keeping track of sites like dKos and realize the possible consequences of their actions. My daughter was surprised to see an email from Enterprise, and I am sure this particular situation will be resolved.