You've ruined something for me. My adult side is grateful but the rest of me is throwing a tantrum right now. I hope you're happy with what you've done.

I read a book about elevators accidents; don't.

elevators accidents or escalator accidents?

elevators. for escalators, make sure not to watch videos of people falling in "the hole".

With people properly using them or not?

I am fairly certain that the vast majority comes from improper use (bypassing security measures, like riding on top of the cabin) or something going wrong during maintenance.

I am genuinly sorry about that. And no, I am not happy about what I've done.