[QuickSilver]

Don't feel bad. We've all made mistakes with our dogs, and felt horribly afterward. When I first got Thor, I tried to socialize him with big dogs at the park, and once he got so scared that he ran away from me, out of the park, and onto the sidewalk. All I could think of was what if he had run into the street and gotten hit by a car... I really bawled over that one.

I think the good news is that your dog really was not challenging you or showing you hostility. She was emotional and she reacted aggressively to a surprise pull on her collar. Most dogs in that situation will turn and bite at the thing restraining them without thinking -- just as most people would if their emotions were running that high.

We care about you and your dog and we want to give you good advice so that you have a happy doggie family. I am also against shock collars and would not advise one in this situation, but of course I know that you love your dog and are trying to do right by her.