OMG I read the story. It's heart breaking and frightening. When I first got my treadmill my son was only 3 (5 now) and I had the safety key in and it plugged in. I also had the back facing the wall. He hopped on and flipped it full blast. He fell against the wall and the belt scraped off skin from his arm and back. It only took a second and I can only imagine if I hadn't been right there. It was so scary. I now have a high spot to hang the key and it is in my basement gym where the children are never allowed to be. I now know how dangerous they can be. Children should not be allowed around them at least unless all the safety features are utalised.
"They laugh because I am different...I laugh because they are all the same", unknown]