I've got a seven year old border collie. Yesterday afternoon he bit a three year old child and gashed open her eyebrow. Everything has turned out OK. The child wasn't seriously hurt. Her parents are being civil about the matter, and the police visit was uneventful. Nothing would have led me to believe the dog would bite a child. We have a seven year old that has grown up with this dog. Her friends have played with him, there have been hoardes of screaming kids around him at birthday parties, never gave any inclination he would do something like this. He's been dressed up, attempts have been made to ride him, etcetera. He's reacted to all of them very happily. There weren't any witnesses.I was on my way home from work. The kids mom and my wife were in the kitchen, around the corner where it happened, and didn't see anything. He was the only dog loose at the time, and the hospital confirmed it was a dog bite. I'm guessing, at this point, that the child did something to aggravate the dog. It goes without saying that he'll never be around children unsupervised again. I am looking for some feedback as to what steps I can take to further insure that this never occurs again. ( short of putting the dog down) Training tips, etcetera. Any help would be greatly appreciated. So far, I'm planning on beefing up my backyard fence, buying a harness for walking him ( he'll slip his collar, then sit down and grin at me, just to let me know he can do it), and stepping up his obedience work. He'll also be going to the vet today or tommorow for a check-up.