Being unfortunate in having 3 broken backs in our family of 7 kids, but fortunate in that only one became a para, we were well aquainted with wheelchair people. I still remember when our son decided to go down an escalator in his chair. And then go back up again on the UP beside it! The security people of the Mall were waiting for him at the top, and escorted him over the the elevator and out of the building! Sheesh, no sense of HA HA at all, those guys! He would have loved to have done what that young guy did. Sadly he died in another unrelated accident...Old Doug