Me neither, never have bought into that theory for the very same reasons you stated. I don't think some realize that an user/abuser/addict just doesn't leave their 'chit' laying around where ANYTHING could happen to it. They may not know where their kids are, but they dang sure know not only where their chit is, they not exactly how much they
should have
. I said should have because they almost invariably 'think' they have more than they do...
Of course there are exceptions when someone is in REALLY DEEP. As bad as these people are, they were not heavy hitters, at least heavy hitters for any extended period of time, kwim?..
Abusers are paranoid of someone (including a significant other) stealing their pills, they hide them, sometimes so well that they often can't find them later

..I know of someone who used to snort cocaine and he was terrified of 'the breeze' from someone moving about in the same room...

..can't take a chance of that poison blowing away..:bang:..just sayin..
Also, MOST children (not all

) wouldn't chew these nasty pills up either..they'd spit it out..jmo tho..