A Mouse Machine and a Fairy Tale Battle

I was going to leave school and go home for the day. I was walking toward the bus stop when I remembered I had brought my bike to school so I should just ride home. As I was walking back to the bike racks I saw a girl go by on a bike that looked exactly like mine, carrying a lock and a helmet that looked exactly like mine. I called out to her to stop but she ignored me and just kept riding. When I got back to the bike racks I saw that mine was still there so I guess it was just a coincidence.
I was walking down the street with Justin and running away from some kids with a machine who were threatening to use it on me. Eventually they caught up to us and used the machine on me. Although these things were actually happening to me, I also had a view of what was going on inside my body as it happened. There were two mice that were released into my stomach, and they crawled into my arm, and started gnawing away on the bone. The machine's function was to harvest the bone so the materials could be used for something else. After the mice had chewed off all of the good parts, all that was left was a little wire, which they wrapped in some string.
I went over to Justin's house with a couple of my friends. I had just gotten back home, and Justin didn't know I was going to be there. He was at the gym, so I was sitting at his kitchen table with some of his family members. I turned around and saw a toddler walking around behind me. They said that was Justin's nephew. I said that he looked like one of the Wii characters Brian made. I was still in my clothes from work and I decided to take a shower so I would look nicer. When I got out of the shower my hair was long again, and for some reason I had a bunch of shirts with Simpsons characters on them. I didn't really want to wear any of them but I picked one. I looked out into the kitchen and saw that Justin had gotten back from the gym. One of my friends that I was with walked out to talk to him, and I sort of hung back behind her. It took Justin a couple seconds to realize that I was there but when he did it surprised the hell out of him, he jumped and his face turned pale. I apologized for scaring him, but he said it was okay and was happy to see me. Justin and I hung around in his room for a while talking and, catching up...
Kids at the teen center showed up at Justin's house later, and apparently there was some kind of battle going on that the kid's parents were involved in. Justin had gone next door, so the kids and I were watching the battle through a spyglass kind of thing. There was a big ancient-looking room, with concrete pillars and vines growing all along the walls, and the ground was covered in about 12 feet of water. There was a big creature that looked kind of like an aquatic dinosaur with legs, which was apparently the bad guy that the kid's dads were fighting. I only caught a couple glimpses of what was going on, but when I looked I saw a fairy yelling instructions to a little water snake, that would jump out of the water and bite the dinosaur thing. From the place we were watching, there was a tree and one branch had yellow leaves on it. Each time a leaf fell off, it meant that the kid's parents were closer to losing the battle. The branch lost a lot of leaves throughout the battle, and eventually the last one fell off. The kids told me that this just meant the battle was over and that their parents actually won.