Wild animals can be trained, but they're still wild. We really have no idea what goes on in the brains of dogs, cats elephants or kangaroos, nor do we know what can set them off. This boxing kangaroo was part of a travelling comedy show. But the six-foot-tall, 150-pound wild animal wasn't laughing.
Kangaroos are natural boxers, but their kicks are deadly. When Willard the kangaroo gets nervous during a television appearance, he lashes out and kicks his handlers. via Animal Planet