It has never occurred to me that I needed to access-proof my bathroom. Although my house is reasonably high traffic, almost everyone who comes here is well known to me. (Including the pill-spiller.) And as such, is trusted by me to be sensible. And frankly, access-proofing my medications would be a giant pain in the neck.
So what do I do? In the short run, I'm considering requiring all non-residents of the house to use the downstairs bathroom. That doesn't change the fact that a destructive (accidental or purposeful) visitor, or a drug-seeking visitor, couldn't just slip into my bathroom for a look around. It just never occurred to me that this could be a factor. About the only possible solution I can imagine is installing a locking cabinet.
Just what I fucking need. A drug safe.
I miss the days when the most dangerous thing in my bathroom besides the cleaners under the sink was my statin drugs. Sigh.