 So, boom, there that dog is, back where it came from with a bunch more bad pictures of living in a home because chances are they got frustrated with the dog, lashed out at the dog, did things they shouldn't have done with the dog, and now the dog has those pictures along with the other shelter pictures. Ninety percent of the participants who returned their dog to the shelter revealed they did so because of behavioral issues. The most common behavioral issue was aggression toward humans. Wonder why.