No, never. I've been to a few 'human' psychics, but never for a pet. Quite honestly, I hesitate to believe the authenticity of most...human or pet. I will admit that I do believe genuine psychics exist, but tend to think that authentic ones are few and far between. Of the human psychics I'd seen, only one ever got information absolutely bang on - things I'd never divulged to anyone in my life, she picked up on, and was even hesitant to mention. She also predicted a few future events (including for my sister, a car accident on a bridge...she kept saying to her, 'be careful...I'm seeing an accident in a car, but it's not on land, I'm seeing water, please be careful'...a month later my sister walked away from an accident that took place on a bridge that spanned water; the car was completely totalled, and she wasn't hurt). But all of the other psychics...completely, totally, utterly wrong on almost everything (one guy even argued with me when I told him my job, he said, 'no, that's not it, you don't work in a place like that'
).
So I guess this is just my feeling of psychics in general. Yes, I believe that some are authentic, whether for pets or people; but I find that there are so many charlatans out there that to find someone who truly does pick up on things is rather difficult to find.
btw, I did have my own experience once of communication with a pet. This was a rabbit I had, Raph. It was the day he was going to be put down...he had severe arthritis and could no longer walk, and his pain meds weren't working very well any more. I was devastated at having to say goodbye to him, and about an hour before the scheduled appointment, I sat with him in the backyard, him lying on my lap as I sat on a swingset, stroking his fur and long ears. I was so emotional, tears were falling...and suddenly, I "heard" him communicating with me. It wasn't so much spoken word; it's a bit hard to describe, but it's as if I understood him completely via feelings. He was letting me know that his time had come, that he was okay with it, and that he was so grateful for the love that I had for him, and in giving him a good life in the short time he had. I was completely stunned by this - esp. as, at the time, I had no belief in animal/human communication on that sort of level; but you know, it helped me so much when I took him in to be euthanized, I kept 'hearing' "it's okay, it's okay". I walked home with a very heavy heart, but at the same time it felt like Raph was still with me. And a couple of nights later I had an extremely vivid dream; Raph was lying on a blanket on the floor, and was struggling to get to up. He did this for a minute or two, then suddenly he was on his feet, and was hopping about and dancing(!!), so joyful that he could again be mobile. Then I saw him hop away into the woods, and the feeling of happiness was immense. I believe he was telling me that he was okay, he was happy, and I needed to let go of my pain.
Anyway, that's one reason why I can never dismiss the existence of such communication; it's simply finding someone who is authentic that can be the challenge.