Didn't sound defensive to me

If he's so good in the garage, then why can't he just stay there? Is he having puppy accidents? Or are you just looking for a change of environment for him?

and if you think about it, any dog can be stolen if outside, right? We microchip our dogs to help keep them safe...??????
I've heard horror stories about people stealing dogs, cutting them open and getting the chip All they need is this special scanner thing that will tell them where it is