The devil’s advocate in me says that dealers often cut drugs with formula so there’s at least one other reason to keep it locked, but I don’t know how well that statement holds up under scrutiny, because it’s not like they check to see if you actually have a baby when you buy formula, and it’s probably not worth the risk to steal it as opposed to just buying it with the kind of return you’d get from diluting your product.
And yeah, I see razor blades, shampoo, and fucking laundry soap under lock and key in stores all the time. Nobody’s cutting drugs with any of those. Shit’s getting real fucked up.