Even seems like a switch where if the feet come off the ground it would turn off. Granted injury would still be possible but maybe more road rash than actually getting sucked under.

Seems like if a cheap space heater can have switched like this I don’t see why a 34 billion company can’t focus on this to come up with something truest innovative and safe.

Regarding the photo switch. My first thought was that dyson is now counting dust particles 15,000 times a second in a consumer grade battery powered vacuum these guys could do something equally innovative.