Dog bites or shows serious agression toward other pets in the home. Dog bites or shows signs of dominance over children or other family members. Dog becomes blind, seriously injured, or very ill. Dog runs away or escapes fenced yard. Dog is not housetrained, is difficult to housetrain, or suddenly begins soiling the house.
Dog plays too wildly.
Dog is not playful or energetic enough. A new baby comes into the home. Family member develops allergy to dog. Dog becomes destructive, gets into trash, or otherwise displays undesirable house manners. Dog barks uncontrollably.