I use harnesses because if they pull when we are walking it doesn;t choke them....however we took both to the groomer on Wednesday and when we picked them up I really noticed how loose Missys was, but Chelsea pulled completely out of hers. Fortunately I was only a few steps away from her and picked her up. (she didn't want to go to the back of dh's jeep because she knew she'd have to get in the crate. I guess...that or the traffic sounds scared her, but she was pulling away from me and she never does that. I tightened them both, but they are really, really hard to do. They are new ones from Chewy and I really don't like them as well as ones we had in the past that are now too small.
Love All Life, Thank You For Posting! :)