There is a scooter person who rides up and down my street at around 45MPH every morning and evening. It's so fast the whole thing is over in about 3 seconds, I don't think you could safely even flag them down.<p>Ok, not great.<p>But who the heck would do this on a sidewalk? As a society we can't give people powerful tools with no training and then be surprised when they mow down other humans.<p>Who should be liable? The operators or manufacturers, or both?<p>This episode is tragically sad, and I'm certain it's not the first time.