The phrase "aggression issues" refers to difficulties or problems a person may have with controlling their anger or behaving aggressively towards others. Full definition
A correction - based method may be effective for a dog with aggression issues where the undesirable behavior needs to be stopped immediately. (dogs.lovetoknow.com)
I rescued him from a high - kill shelter with dog aggression issues, and have been training him myself for the past 2 years. (dogtrainingpost.com)
Dogs can also develop aggression issues towards strangers or other dogs, as a result of being shocked as they approach to say hello. (warmhearts.org)