<human>: Can you give me the gist of the text in a nutshell?

First of all, Petsmart was not my first choice. The day camp she usually goes to was closed today. I have not been impressed with them in the past, and I will never bring her there again. 

I got a call that she is in doggy time out for being toy aggressive. The associate said someone was throwing a ball in a room full of dogs and mine kept taking the ball and not sharing it. When another dog tried to take it from her, she growled and nipped at it. She said they are going to let her back out later this afternoon and if she does it again they will spray her with this thing: 

She's a whippet mix, so she probably is the fastest dog there and probably was taking the ball from everyone. She doesn't like sharing balls, but that's not usually a problem because we play fetch by ourselves, not in big group of dogs. We go to the dog park several times a week, and we never have problems there. I don't expect her to share her ball and she gets plenty of space to chase it. 

What is up with this? I feel like playing with a ball in a group of dogs is a bad idea and that my dog was set up for failure.
<bot>: My dog is in doggie time out for being toy aggressive. It's Petsmart's fault for throwing a ball around in a room full of dogs.