I definitely think it's possible for our pups to become mad at us. My boy is quite mad at his daddy right now for yelling at him earlier when he was being naughty and putting him in a 10 min time out in his crate. It's been about 4 hours since the time out and Teddy isn't giving his dad any kisses or any attention lol.
Luna was probably scared of the groomer and her surroundings. I've witnessed some groomers being very mean to some dogs and handling them extremely rough. I would just cuddle her up and give her extra treats, hopefully she will be a happy girl soon!
