I know someone who used to be a genius and apparently it was uncommon but not unheard of for someone to puncture a battery resulting in a violent fire that had to be put out by dumping a fuckload of sand onto it.
So this isn’t that far off from working at a Genius Bar normally.
I don’t see how we can ever get to this point without solving vergence accommodation conflict, which even Apple seems not to have a plan for. I truly don’t understand the money pouring into AR tech at this point in time.