my kids used to love to play with foster daughters wheel chair and other equipment. Banged into all the walls and each other. One of the funniest things I remember is that FD has a wedge with velcro straps for positioning her on her belly. The kids used to strap it on each other and and fall around all over. They said they were playing turtle. Cracked me up. They also used it to ride down the stairs with. I used to have lots of equipment here with my work with older and disabled people and they would create great games and such from all of it. Wheel chair trains I remember well. Such sillys. Take care of that shoulder. When Sky mentioned rotator cuff problems I swear my shoulder started hurting worse. Power of suggestion.