I’ve broken in a few horses in my time, and trained some in barrel racing, some for trail work, some to herd.
I used to hand feed and train “exotic” birds. Cockatoo’s, parrots, macaws, African greys, finches, white doves. That was when I was much younger though, it was what my grandmother did for a living (breeding), and she got me into it.
I’ve raised bottle calf’s, but that wasn’t really training. Unless you count them running when they heard bottles or feed.
I trained my older boys (21 and 19 now) to be completely self sufficient. And trained my girls (9 and 7) that I’m their personal maid and assistant.
I trained my body to shut down and sleep when I’m in pain. That one is pretty **** handy!