Two dogs, desperate to play together, break through the fence. Elizabeth Potter, 30, from Red Wing, Minnesota, was on her way to work when she found her St. Bernard tied to a fence. Everest, a 3-year-old dog, disturbed the neighbor’s 2-year-old English Mastiff Bear. The bear and Everest, with their huge heads, dug a hole in the fence, filled, no doubt, nothing but mischief.