(Bloomberg Businessweek) -- A few weeks ago we published a story about how you should prepare your dog for your possible return to the office. Many, many people read it (we’ll assume it wasn’t the dogs), so we figured we’d do a follow-up to answer another question on pet owners’ minds: Why is my animal acting out these days? “It’s important to remember that your pet isn’t giving you a hard time—she’s having a hard time,” says dog tra...