Einstein ALWAYS has tags on and is microchiped. He has 2 collars - one with his rabies/microchip/ID tag on it for normal wear (rolled leather) and a "dog park" collar that's nylon and has an ID tag and his other rabies tag (he was vaccinated twice - still pissed about that). I can't stand the thought of him rolling in the mud with a leather collar on. /twitch

Collars come off only at bath time and when we're switching from dog park to regular or vice versa.