My friends mom has been trying the opposite- shes trying to avoid buying any plastic packaged food. Not so much out of concern for microplastics, but as a way to reduce her environmental impact.
Its also helped her eat much healthier- most candy is out, all her veggies are fresh instead of frozen, fresh meats instead of prepackaged ones, etc.



I had to deal with the opposite once.
Was managing a bar where doing shots with customers was common. We also kept a bunch of leroux blackberry brandy in stock that was common for this (a tradition dating back 30 years)
One of the bartenders refilled an empty bottle with robitussin, becauae he was sick, and was shooting that instead when he did shots.
A server then snagged thay bottle and a couple of shot glasses to pour some shots tableside for a group, and then accused the bartender of dosing him on lean. (Promethazine and roxycodone)