They sure do. When I came home today, and he wasn't here to greet me, I broke down and cried. Again. I cried in the shower, during my commute...sigh.
Then I dug his original ID tag, the one from Philadelphia animal control, out of a drawer. I pried it off the old collar and put it on my EDC neck lanyard. Now a little piece of him will be with me every day. I feel a bit better now.
-- Craig