I agree with boscibo, Amy, Pam, and everyone.

My dogs are wonderfully socialized with other dogs, especially Reece. BUT if a dog was running toward me off-leash and I had a dog aggressive dog at the other end of my leash, I'd start yelling like a crazed maniac!!!! She was concerned about the safety of the other dogs, as well as her own. And in emergency situations, sometimes people are gonna yell. It was you guys, afterall, who were breaking the rules.

And as Chesirekatt said, a dog biting another dog does not mean he will also bite a child at all. I've met so many dog aggressive dogs at work who are complete marshmellows with people and children.

Also some dogs are just plain dog aggressive, no matter how much they are socialized. I have a friend I've been volunteering at shelters with for years. She knows a ton about dog behavior and training and socilization. She has a dog aggressive dog despite her every effort. She loves him very much and he was never abused or in a bad situation.

Oh yeah and even if your dog is voice controlled really well, there's still that chance that the other dog just may be more interesting than your command. So you can't depend on that 100%.