We have two rather rambunctious 7 month old kittens who have been tearing around the house like a couple lunatics. It wouldn't be a problem but they have knocked over the Xmas tree twice now along with tossing things off counter tops and tables. I'd like to try the Comfort Zone plug-ins. but I'm sort of concerned about our older cat. He is 24 years old and I certainly don't want to slow him down and have him "act his age" you know? Would the plug-ins effect him too much? Or do they work subtly enough to not effect him too much?


