Help, My Dog Is Broken!

You are making breakfast. Without looking, your sleeve brushes your plate off the edge of the counter, it falls to the floor, and shatters. For some dogs, after being attacked by another dog, being abused, or having to defend themselves against a human, the dog changes. What was once a social dog is now wary or aggressive to other dogs or people. I’ve seen it many times. What should be done? (MORE)