Quite clever. While watching that, a number of things ran through my head: Those girls are sure skinny (and obviously lightweight); I wonder how that thing would handle a fata$$ like me?; me on one of those things would look like an elephant riding a unicycle; wouldn't that be great for marginally limited folks?; and a lot of other mundane stuff. Roadster32 is thinking on the same lines as me, since I weigh in the mid-twenties. At this time, when I want to go anywhere like a car show, I carry a "Walkstool" with me, and when my leg gets to bothering enough, or my back goes on strike from trying to compensate for the leg, I just unfold the Walkstool and sit; if I go with someone, they just go on ahead, and pick me up on the way back, so, like Dave S, I miss a bit of stuff. I'm thinking more and more, that having a mobility "device" would be kind of nice.