Earlier quoted context omitted.
It is a bit sad that so many people miss or forget these important lessons in HS chemistry :P
Wasn't even told that about those things in HS chemistry in my time in my country, not sure why - considered too dangerous knowledge by educators? Only found out about it on 4chan and gasped on how easily we could have accidentally injured ourselves while cleaning our dorm bathroom.
Then I tried to figure out what else bleach could do. This is not a healthy line of experimenting for a dumb 17 year old.
I 100% believe HS chem should teach this. Then at least you know what not to do.