> It must not be both a floor polish and a dessert topping.
I worked as a janitor for four years near a restaurant, so I know a little bit about floor polishing and dessert toppings. This law might be a little less universal than you think. There are plenty of people who would happily try out floor polish as a dessert topping if they're told it'll get them high.
Borax is an example of a substance that is simultaneously used for skin care, household cleaning, as soldiering flux, and ant killer. But I guess it is a constant with variable effects. Hard to be found in local shops anymore.
I worked for awhile as a janitor in a college dorm. Not an easy job but it definitely revealed a side of humanity I might not have otherwise seen. Especially the clean out after students left for the year.
Something as expensive as dessert toppings would only be used as floor polish by the people who truly were high... and only if they could do it without the boss knowing what they were doing.
I worked as a janitor for four years near a restaurant, so I know a little bit about floor polishing and dessert toppings. This law might be a little less universal than you think. There are plenty of people who would happily try out floor polish as a dessert topping if they're told it'll get them high.