Hso, is this anecdote OK? I think it's apropos the subtopic of "things kids were lucky to survive.."
My thesis advisor grew up in Poland in the 1950's. They had safety lectures in school, sorta like the ones firemen give in US schools about fire safety--but these were about unexploded WWII ordnance, which was literally thick on the ground there.
He said, "They showed a movie to warn us how children would get themselves killed playing with that stuff. The movie taught my brother and I two things: the first was how dangerous it could be; and the second was how you go about making it blow up." They went into the woods and found a mortar shell, which they brought home and, um, put in the kitchen (dangerous details omitted).
He said, "It was just like in the movie! We waited for ten seconds... thirty seconds... one minute... five minutes... and nothing happened. And
just like the movie, our little sister wanted to go see. That's just how the children in the movie get killed! So we stopped her--but we had to hold her down and sit on her, or she would go in and look. Twenty minutes went by, and we knew that soon our parents would be home from work and we'd have to tell them..."
"Then thirty minutes went by, and finally
BOOM! It blew the entire roof off the kitchen. We were so relieved! When our parents came home they didn't say a word. They just sat on the ground and stared at the kitchen, while we said, 'We don't know what happen! We come home from school, play in the yard, and suddenly
BOOM!"
--Len.