What you shouldn’t do when renting a car in Cancun?

It is pretty common to rent a car in Cancun and a part of the travel experience that you’d think the process would be straightforward and transparent — yet somehow it is anything but. Would I need to buy additional insurance? What about paying to refuel the car? I hear horror stories about phony damage claims; should I be worried? No one is around to inspect the car with me; is that okay? Can I drive into another country? Would I need all the extras they offer me at the rental counter? All of these questions round up pretty much every time we rent a car in Cancun.