Glad Zach is ok, I never put a collar on Paris either. Once, when he was little He wore a collar and while I was at work it got caught in his mouth. By the time I got home his whole chest was covered in drool and he had a look of terror in his eyes. I felt so bad, I still feel bad when I think of it. He has never had a collar on since.
www.paristheblindwonderdog.blogspot.com