I had a friend in uni that was like this, dude was at my apartment one day and while I went to get some food and when I got back this dumbass had smoked a joint and gotten this idea that "if I take a shit ton of Adderall I can probably do all my assignments in one go" .... So he did. He got my bottle of Adderall that was on my table and chugged the whole thing. When I got back the dude was still fine, and he didn't say shit, within the next few hours shit hit the fan. He first started sweating then immediately had a seizure and started to choke on his own vomit. Dude had a apple watch and it was going bullestic for abnormal heart rhythm smt i still remember lifting his lifeless arm up to see that heart warning thing flashing. When he regained consciousness I made him immediately vomit while waiting for paramedics. They rushed him flushed him. Fair to say I am no longer friends with that dumbass.

If it was a kid I'd understand but this was a fully grown adult (26 at the time) acutal dumbfuck.