They'd probably make me weep as well so please don't tell them to me... Of course I don't, how can you know the long term affects when the device hasn't been used long term? Steve's only had his for a few years (during the first year of which, I had him given weekly physicals at the vet and after the first year, monthly ones to keep track) and Brittany's cat has had the thing for only a couple of hours. Obviously I would monitor that sort of thing; I'm not completely ignorant or careless. If there was any negative impact according to the veterinarian, I would stop immediately. I love Steve, he's like my child and I'm sure Brittany will feel the same about Captain; I would never let anything bad happen to them.
See, this is why I stick to my own lab and barely ever come out. You sound like my dad