YOW! What on earth does that woman think your dog could learn from going again?! How to stand up for itself?!! How much better to have a dog that will be submissive if facing a stronger dog than a dog that will bite ANY other dog because of a bad experience!! I also think a new dog park is a good idea. It also sounds like the other dog owners don't have very goos control over their dogs, they shouldn't be letting something like that happen.

I'm sorry that your poor darling should have to go through that. Send her kisses from me and my FRIENDLY labbies!