This wasn't to me, but here it goes:
We're on the beach in Martha's Vineyard, relaxing, having a nice little barbaque, and playing some baseball. We recently got this new bat that had a hollow tube in the middle. In the tube was some sort of ball bearing or piece of plastic that would roll to the end of the tube when you swung it to make it crack, like the sound of a home run being hit. My older sister and I put on a fun little skit where she swings it at my face and misses, but i pretend to be hit and fall to the ground because of the crack. Good times were had. Then my two younger sisters decide that they'd like a go at it. First sister Sarah picks up the bat, and looks at second sister Chelsea for approval. Sarah swings with all her might, nailing Chelsea upside the head. Chelsea looks at Sarah with a glimpse of sadness and betrayal, and then pure rage. The wild seven year old attacked Sarah like a rabid possum, grabbing her by the hair and swinging her down to the ground for a massive beatdown. Not to be outdone, Sarah flips Chelsea over and begins to pummel her. What started out as the two older kids playing a fun, imaginative game turned into a brawl at the beach.