I've crashed a Lime/Bird at least 3 times, none of them related to cars or other people in any way.
1. Taking a pedestrian bridge off-ramp in the rain at max velocity because I wanted to see if I could take the corner going that fast.
2. Finding a quarter-pipe set up next to a bridge. How can you resist trying to shred it? It went well on run 1 thru 9. Run # 10, not so well.
3. Driving one home drunk at 230am and trying to drive it with only one hand.
My point is that it's pretty easy to fall off if you are pushing the envelope in any way at all. Who the hell falls of a scooter? Hah! Who the hell rides one exactly how you are supposed to? Totally boring.