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)
It is not wise the take your puppy walking through the streets as that can lead to dog aggression issues in the future. (barkbusters.com)
Many dogs develop trust issues with other dogs after having been bullied or attacked at the dog park, or off - leash, and this often spills over into creating dog reactivity and dog aggression issues down the line. (thegooddoglifeblog.com)