Dog Growling At His Own Foot

Some people may have missed this video, which I wasn't going to post, because it's freaky. But then Gio explained it to me, and it made sense after all, I think.

"What in the world is that dog doing?" I ask.

"He's attacking his leg, because it's (the dog's leg) trying to take his bone," explains Gio.

"And that seems normal to you?" I ask.

"Uh huh," says Gio.