I don't blame having questions I am on here constantly to get answers for mine. I bought a dog carrier for George when I knew I was getting him, and he absolutely hates it. My neice has a Yorkie Oliver who is 2 and he loves his carrier (she actually takes mine and uses it too). George starts to shiver everytime I try to put him in there. I read on here some people's Yorkies love their carrier and love to wear clothes.....that is not George at all. I would recommend trying to get her used to the carrier honestly I wish that I had done that, I just feel so guilty making him get in there when he doesn't want too. Also, I have a harness for him they are just so small and I would never want to put something around his neck that could hurt him. I got my harness from Target and we are working on him getting used to that. Oh and I am not sure what an ex pen is I am so bad about making him stay in one place as you can see he is very very spoiled! Good luck and feel free to ask anymore questions. Knowledge is Power