Okay, experience teaches that there's a "right" way and a "wrong" way to mount a toilet paper roll on the spool. The right way is, of course, configured such that the paper lies over the top, not behind the roll. It just is. I've seen the pros and cons in ridiculous detail, but over the top is "correct." 70% of those polled (on some apocryphal internet site I read) agree and if I've learned nothing else in my 42 years, it is that if 70% of the people polled think it's so. . . who am I to argue with those geniuses?
It bothers me that my wife seems to hang the toilet paper indiscriminately, like it somehow doesn't matter; like it's somehow not the huge deal that it so totally is. When I do happen to spy the roll incorrectly mounted, I change it without comment, however, because when I do bitch about it, she says things like, "If you'd have bothered to put the new roll on yourself when you finished the old roll I wouldn't have had to put the new roll on incorrectly!" which just distracts from the point, (which is that she's doing it wrong) and redirects it to something irrelevant (that at least someone is doing it).
Despite knowing the "right" way to mount the rolls, Lily receives an 'adapted' roll. It's not in her IEP or anything, but like other adaptations and therapies we've implemented for Lily, it allows us to give her some amount of privacy while she sits on the potty while simultaneously preventing this:
From turning into. . .
Because you can't do that if you roll it from underneath.
Experience is the best teacher.