According to a convicted thief interviewed by ABC's 20/20, Beware of Dog Signs deter burglars whether you have a dog or not. Here is a sign that combines the security of having a guard dog with a little humor. Beware of Bowser? Beware of the Dog. Beware of the Cat. Beware of the Bird. Why not personalize a plaque for the dog, bird, snake, ferret, or cat in the family and add the little warning to others at the same time. We love being creative and there is never a charge for artwork changes. 12″W x 4″H 16″W x 6″H 20″W x 8″H Select Material, Color, and Size below to see pricing. Please go to Custom Sign Quote for other sizes.