Sibling rivalry
Getting a new puppy is exciting—at least for the humans in the family. Sometimes, however, the dog of the house doesn't think the pup is a welcome addition. Many people believe that the process of adding a puppy to the family will be harmonious and that the current dog(s) will also be excited. They are disappointed when that doesn't happen. Expectations are often unrealistic but, in most cases, what the human family members see instead of those expectations is entirely normal.