The poll was unarmed in an open area. And I doubt anyone's ability to beat a large dog. People do beat cobras, but only because you can "hypnotize" them if you know what you are doing.
Personally, I will vote for none of these. I could take the rat, house cat, and goose. In fact, I KNOW I could do those as I HAVE. Anything other than that, though? Nah.