Mine: The elevator had old fashioned doors with tall windows, one door's window had broken & fallen out.
When a kid put their head into the elevator shaft to look how far down the elevator was, but it was actually coming down from the floors above. Pulled their head out with about 1/2 a second to spare before getting decapitated.
Especially scary considering the accident that just took place on the carnival cruise. (Don't Google it. I've warned you)