You would be surprised how fast these things can move. I only had the point and shoot with me and it limited how fast I could focus and shoot so it took several shots just to get one in focus. I thought he was going to climb right up on my camera as he was walking towards me.
By the time the camera focused and fired he was already so close that he was out of focus. I might add that this was taken without any zoom. Not that I'm a big chicken or anything but I wanted to get off the ground and out of his way as fast as possible! :~)