AT THE BEGINNING of my career, 29 years ago, I worked for a company that trained horses, camels, lions, tigers, dogs and cats. That was my introduction to handling animals on film and TV sets. I’ve been exposed to everything—primates, big cats. My first film experience was on Titanic, where I trained the dogs and rats. I still do dogs and sometimes wolves, but I have narrowed it down. Now, I primarily do horses.