What's the most dangerous thing you did as a kid without realizing?

I rolled a tyre down a hill...

Was walking my dog with my friend when we saw a tyre on the side of the road, so I thought it would be a great idea to kick the thing to make it roll along with us. All good fun until it started picking up speed, I tried kicking it over, but I couldn't destabilise it at all, I ran along with it as fast as I could until it was going waaaaay too fast, so I just stood and watched as it flew inches passed my father's car and into our garden gate, which got OBLITERATED.

It 100% would have killed someone if it hit them... I think about it at least once a month and how lucky I am no one got hit by it, and how fuckin stupid I was for doing it... I have such a long list of dumb shit I did that could/should have resulted in my, or someone elses injury, but this one tops them all. I've been extremely lucky.

/r/AskReddit Thread