It seems that powered skate boards are a thing. I was about to cross the road in town yesterday when I was surprised to see a youth sitting on a skateboard zooming towards me, closely followed by a car. My first guess was that he'd hurtled down the bridge to gain the momentum that was now carrying him up the slight hill. He then pulled in behind a parked car and stopped to let the car that was following pass. Again, still not surprising, but once the car had gone, he then accelerated away uphill, still seated on the skateboard. Who knew skateboards could do that?