I'm not sure I buy that. I'm looking at the last panel of the second scan, and what I'm seeing is Ralph pulling the wheel off with both hands, and it seems to be coming pretty much straight off, with no visual hints that the wheelchair is at a different angle (unless there's an intervening page that shows otherwise). If he's pushing the wheelchair over and snapping off the wheel, we shouldn't be seeing the fingers of his left hand, and also he should really still be gripping the wheel at the top, instead of switching his grip to the sides.
On a sidenote, good to see you around again. When the suspended message popped up on s_d, yours was the only username I could remember (I'm fairly new, only been around a month or so), so I checked your LJ to see if you had posted anything about it or if there were any names on your flist I recognized. Fortunately, after that I thought to check the google cache of the scans_daily profile for admins and found schmevil's LJ.