One year my brother, sister and I decided to play "King of the Mountain" on the 7-foot high, steaming pile of barn scrapings. I was the oldest so I could generally hold the top spot by pushing my younger siblings until they tumbled down the mountain, although sometimes they ganged up on me and I went rolling down the hill. We didn't mind, though, because it was soft and really warm (as decomposing manure and hay can be).
I don't know why there isn't a steaming pile of manure and straw on every playground in the country, they are so much fun, and you can't get hurt! I was bummed that we weren't allowed to play on the manure pile after that incident - seemed like such a waste. To this day, I still love the smell of cow and horse manure mixed with decomposing hay - yup, you read that right!