I did retirement home training and used to think it was a sweet job. Then I got in the business and underestimated how demoralizing it was as they give you the easy elders in training while the others make you, or at least me, really think of the fact the job just amounts to an unkarmic freebie.
I had similar experiences. It’s like there’s a small but noticeable subset of the population that wants to pin “drug user” on any person they meet and think is weird. Meanwhile, actual drug users are everywhere and mostly manage to act normal.