human
Is it normal for my dog to be aggressive when I'm not home?
assistant
It is very important that you establish a consistent and clear set of rules with your dog. This should include setting boundaries around where, when, and how they can interact with other people and animals. Establishing this kind of routine will help prevent any unwanted behaviors from occurring. Additionally, make sure your dog gets enough exercise and mental stimulation so that they remain engaged in their environment and don't become bored or frustrated.