DH is visiting his mom in Boulder, CO. Her house is up near Chautauqua Park (up a large hill with some horizontal roads cut into the hill for housing). He was sitting out on the deck enjoying the view out over the valley and he noticed the following -- a vehicle driving up and down the hill repeatedly. For a few minutes he couldn't figure it out and then went to investigate. At the top of the hill a young person got out of the car and skateboarded down the hill. At the bottom of the hill the parent used the car to transport the kid back to the top of the hill. This was done to save the child from having to walk up the hill. If you've read this far -- extra points if you can name the type of car.....yup, an SUV.