IDK why your comment reminded me, but back when I was in middle school (late 90s) we had an anti drug guest speaker. One of those ones where they were former addicts trying to scare you out of trying drugs. During the Q&A, someone asked him a question and that got him onto how plastic water bottles were super bad for you and you should never drink out of plastic because you’re ingesting tiny plastic particles. I remember we were laughing at him while administration was trying to shoo him off the stage.

Now we just kinda shrug when told we’re ingesting a credit card worth of plastic every week, lol.