Or any other creature with a spidey sense:
Your video of Terry McAuliffe just popped up in my Google Reader. My dog is laying behind my chair. As soon as I started the video, Charlie (a hound mutt from the shelter) started growling at my computer. I've never seen him do that before. I've always been kinda blasé about Terry, but I think my dog just judged him better than I ever could have. As soon as I turned off the video, he stopped growling.