Never ever saw one. Most of my friends are gay, black, seen so much and been through so much. I work with a woman that has changed her name 3 time and became a man. But never seen one single person who asked me or anyone to be called them it they cat or dog. Never. I'm puzzled af and why, on earth, would anyone care about this personal, singular individuals thinking of asking all your surrounding this. Why? Ain't there so many more community involved things you could do, help people. The world is struggling, literally on fire and no one is talking about it, main media's does not cover it. But here, the world is shaking when a known single person is asking for people, to be called as a different pronoun.