<human>: Here's my story. When I was about 12, me and my friends were riding our bikes in a not-so-great neighborhood. We found this weird, concrete block that was about 10 by 10 feet, with a wall on one side about 5 by 5 feet, hidden on the side of a hill, so it was invisible from the road. Under the big concrete block was a small hole, and we saw something shining in it, buried under a pile of bricks. We pulled out this big plastic box, nailed shut, with a paper sign on it that had been washed away by rain. Being the naive twelve year olds that we were, we immediately assumed it was a ton of drugs or a large sum of stolen money. Curious folks that we were, we managed to carry it all the way back to my house. We got a hammer, opened it up, and peeked inside. Rather than stolen loot or illegal narcotics, we found about 500 McDonald's happy meal toys. Needless to say, I was quite disappointed.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Me and a couple of friends found a hidden box, turns out there wasn't drugs or money in it, but just a bunch of happy meal toys.