Justicemom, I have a similar story, except the dog was our family border collie puppy! She was probably 12-13 weeks old, and it was a couple days before Christmas when I was 15. Our sheltie always reacted funny when you blew in her face, sneezed and would just do silly things. So I blew in this puppy's face and she would bite at your face. My dad had kept telling me to stop doing it, she didn't like it. I was clearly stupid. Did it one last time, I was holding her close enough to where her little puppy teeth got caught on the wire to my braces in between my two front teeth, and the wire pulled out about an inch and twisted in front of my teeth. It didn't hurt, but being that the orthodontist was closed for Christmas, my mom was out Christmas shopping, I was hysterical. My dad was soooo mad. Luckily our orthodontist had people on call, so we met an assistant there and she put everything back together. My dad made me feel so guilty about it. A few weeks later when I went to the orthodontist for a scheduled check-up, written in the top of my chart was "Dog pulled wire." He gave me a hard time about that for the next couple visits. He said it looked like it could be one of those joke newspaper headlines. I have never blown in that dog's face since.
One thing that makes me cringe at the dog park in when kids will just go up to strange dogs and wrap his arms around his neck and hug them. And he usually does this to the BIG dogs, he can't catch Missy to do it. I told him to stop the first time I saw him doing it, and somebody else (not related I don't think) said, "Oh, he comes here all the time." Really? You're really going to be ok with a child hugging dogs he doesn't know? What happens when the dog he's hugging whips around and bites him? And he didn't go there all the time, because that was only the second time I had seen him and I go there all the time!