See, now then you have to provide instructions to guests to wave their arms around vigorously when the lights go off mid shave!

(Just like we have to do every 30 mins in the office when there's 3 or fewer in.)

yeah, waving your arms around wildly when the lights suddenly go out is practically instinctual for many people now :-)

See, now it starts to become weird again. I just want the lights on in the bathroom, a motion sensor is an unneeded expense.

I don't think they want to mount anything on the walls, since it's a rental, but that does sound like a good idea. Smart bulbs seem kinda useless to me, but a three-way light switch with on/auto/off might actually be really nice.

This is so complicated. Especially for a bathroom where there is likely only one entrance, you're no more than 5 steps from the such at any one time and you only need to operate the lights when you enter/leave.

Yeah, and robots with laser eyes scanning for people sitting on the crapper...