Beware of Dog

I took Stoli to the off leash dog park near us for the first time ever. Ah, we lasted all of four minutes before I had to pick her up and take her home. She was not down with the other ten dogs or so sniffing her butt. She went all schizo on them and started barking and growling at them. What can I? She’s more of a people person really. That’s the first time she’s been around any dogs off leash and in a “friendly” environment. i think she’d be fine to be in a one-on-one situation with another dog that we knew the owners but this was just too much for her. At least now we know.