Just provide Corkscrew a place where he will feel safe there. His own kennel, a box, someplace he can go to feel safe and make sure the "strangers" don't intrude on that space.

I understand that easliy stressing out part. That is how Amy is. Here at home, she has her kennel/bed that is her "safety zone" and once in there, she knows NOBODY will mess with her because Mommie won't allow it!