GSDs are real talkers. He may be nervous? Fearful that you will leave him? Hopefully he is not in pain. Poor Ryoo. I feel so bad for him, his horrible treatment!!! Does he whine when he is next to you or only when you walk away from him or are out of his sight?

You certainly are an angel for taking him in. I hope he calms down for you soon. Good luck!!

For the lesson plans, maybe you can give the kids an essay to write!! That always works. LOL