Don't feel bad about taking Payson out of school right now. You did what you thought was best for him. Having a rescue dog is a lot different then having one from a puppy because you're never really sure about what kind of life they had before they came to be with you, believe me I know all about that.

Just take some time and get Payson out there seeing new things and meeting new people eventually with time you should be able to go back to class where I'm sure that Payson will be the star pupil.