We've already established that pets hate costumes. Not only that, but costumes make pets very sad and/or enraged. But if you're absolutely determined to force your pet to celebrate Halloween, there may be a way to do it without the guilt-inducing tragic faces (dogs) and the feelings of murderous rage (cats). We're talking about pet paint! It's a non-toxic, washable color spray that temporarily makes your pet a different color. They don't have to wear anything, but can still look like they're in the holiday spirit. We can't guarantee how still they'll stay when you try to apply the paint,...