Why I Only Train Dogs

I was reading an article in a magazine recently about a dog trainer who formerly worked with elephants. Seemed like a pretty smart career change to me. Then I saw the below video of a lion trainer that was attacked by his "students" yesterday. The clip went viral on the internet and even ended up on Anderson Cooper's show. Everybody loves a mauling, I guess, but why are we surprised when a wild animal goes batzo on a trainer. They're wild, no? Don't know about you but I'm sticking with dog training.