Millions of our non-ancestors stuck themselves in the eye with a sharp stick (or analogous operation). We have literally _evolved_ to avoid poking our eyes with

Millions of our non-ancestors stuck themselves in the eye with a sharp stick (or analogous operation). We have literally _evolved_ to avoid poking our eyes with a fork while eating! We have eyelid closure reflexes, withdrawal reflexes, avoidance reflexes: the system is as redundant as hell and all to protect your vision so you can pass your genes along. Those systems are always alert, even when you sit down to eat with a fork. But an unattended machine that picks up bicycles and stores them is likely _not_ something that our genes will so easily protect us from. Of course our reflexes will do the best they can but one only need look at the history of man-machine accidents, indeed, to look around at the maimed among us to see what usually happens.