Training is recommended for this cat to prevent unfortunate accidents involving other animals as well as people. It is essential the Tiger be taught not to bite, claw, or climb on handlers. A small problem in a Tiger cub can become a large one in a fully matured Siberian Tiger adult.
Um, yeah. I can see how being climbed on or clawed by a fully mature Siberian Tiger (300-500 pounds) could have, um, "unfortunate" consequences. But I'm not sure I'd call them "accidents." Humans are supposed to be smart enough to stay out of the way of other predators.
Tigers belong in Siberia, not someone's backyard.