You may pooh-pooh this but ... my Tiddles was diabetic at 15 and passed away at 19. I bought her a magnetic collar which she hated, as LadyTiddles had never worn a collar in her life (indoor kitty). A couple of days later, she was racing up and down the hallway and full of p*ss (not literally, lol). Wondered what HadGotIntoHer and later that day, thought about the collar. ForWhatIt'sWorth