The penalty for momentary negligence should not be death, especially when there are simple, cheap safeguards to mitigate the risk. No one is asking them to ship light fences with the thing. Moreover, having the treadmill standing up in a living room is exactly how they advertise it. It's hard to argue that's somehow unintended and unforeseeable usage.
It's not the penalty, it's just a natural consequence. Momentary negligence does frequently result in death. Taking your eyes off of two small children could kill them in many situations. It's easy - just watch your kids. My living room is perfectly safe for me and other adults, but I could come up with 5 ways those two kids could seriously harm themselves if I left them there alone for 5 minutes. The world is dangerous. The responsibility for protecting your children from harm ends with you.
