“Time out,” a concept of separating a person until they calm down, is often done with children. However, the method works with dominant dogs, as well. Designate a place where your dog can go when it is aggressive. When your dog is aggressive, give the dog a warning. For example, you can shout “enough.” If your dog immediately stops being aggressive, tell the dog “thank you.” If the dog gets aggressive again, say “time out.” Gently bring the dog to the designated place. Use a leash if need be. Leave the dog in the designated area for five minutes. If the dog is calm, release the dog. If not, keep it there until it is composed.