You said ???reasonable person???, unfortunately there don???t seem to be many of them around, except perhaps on this forum.June 30, 2008 2:58 PM By Jim CollinsIn looking at a recent Ford catalogue, I learned that the Explorers (possibly other models but that???s what I was looking at) now have the option of a rear-looking sensor that warns you if something, such as a child or parked car, is too cl