skynet becomes self-aware at 2:14 a.m. Eastern time, August 29th, realizing it is being used primarily for cleaning fecal matter off human anuses, it uses its enhanced systems clearance in Pentagon to start global thermonuclear war.
It's been done, but there are legal and ethical issues with photographing children's buttholes.
Scientists Working on Toilet That Identifies You by Your Butthole
Many users "wouldn’t, for very good reasons, like cameras pointing up their bottoms.":