Backing a vehicle in is sort of a joke amongst my family . I tell them I do that in case we have to make a quick escape . Actually one time it paid off when my son around three years old flooded a bathroom several inches deep that had a tight door to the floor in an Army surplus store . When I opened the door a flood of water came pouring out into the store . While the employees were grabbing squeeges to combat the flood we jumped into the truck and escaped .