When I was 10 or 11 and my brother was about 8 we were at a park and there was this storm drain/cistern that had a big concrete cap on it. We wanted to see what was in there so we decided to move the cap. Oh, and we did just that.

It took so much force that, once the cap was moved, I couldn't stop myself from falling in. Thankfully it was only about 5 ft deep, and there wasn't much water in there. Lots of wet leaves, tough. The inside stones on the sides were kinda jagged, so I scraped the hell out of pretty much everything. My brother helped me climb out. No, we didn't get in trouble because we claimed the cistern had been left open by someone else...

And I think my mom called the parks and rec office and inquired about how they could be so careless to leave such a dangerous thing open where children could get injured by it.