Great for you! Adopting is wonderful though can be a lot of work.
Ohhh yes JR's, they are characters aren't they? Personally I think mine has big time issues! Sometimes its like going to war with her What exaclty does he do? Destroy things? Chew? Bark?

Tinky is about a year and a half, and basically a little hooligan, when we take her inside the truck she's fine but when anyone leaves she starts pacing, barking at people passing by, and being very restless, this is probably our fault for not getting her trained, but I'm curious what your JR does.