kids will be kids; i highly doubt those kids were trying to slowly kill their teacher, maybe the idea of it was just funny. Kids do not think about long term consequences and fuck whatever, people drink hand sanitizer anyway, i bet she wasn't harmed and was probably a cunt anyway.
I'm sure none of us growing up never had the thought of putting a laxative or eye drops into a teachers coffee? it's the same idea lol. Every generation likes to think the next generation is worse than them but it's not true, you fuckers just got old.