Can someone explain to me how this works? I was expecting her to switch hands. Because if she trained the dog to avoid the treat when she says "Obama" then I probably need to find her address so I can go make it so she can't walk.
I'd guess someone off camera has something the dog dislikes or fears, and presents it to him at the proper time.
That's the face my dog makes when you offer her a bottled beverage. She likes the beverage, but for some reason dislikes the bottle itself.