<human>: Can you succinctly summarize the text in 1-3 sentences?

First post! This happened about 3 years ago. I was hanging out at the school near our townhouse with my stepsister, her friend, and my little brother. I had my bike and was riding around the playground and field that were there. I notice a soccer ball located in the middle of the field, and being the smart kid I am, I think it's a great idea to ride straight towards it at full speed. I'm sure you can guess how this turned out. As I hit the ball, the front wheel turns to the side and the whole bike flips taking me with it. Before I can blink, I'm on the ground with a sharp pain in my back. Apparently the handlebar had been pointing upwards and I had landed right on top of it. As I lay there in pain, not in much of a mood to get up and move yet, my stepsister walks over and asks, "You ok?" I just grunt in response, and she says, "Alright, I'm taking this," picks up my bike, and rides home with her friend. So I walk home, limping because of the pain.
<bot>: Rode bike into a soccer ball, flipped and hurt back, bike got taken away and had to walk home in pain