1. Inconsistency: Confuses dogs and hinders learning. 2. Impatience: Slows progress and creates frustration. 3. Skipping Basics: Causes behavior problems later on. 4. Harsh Punishment: Damages trust and leads to fear. 5. Lack of Rewards: Diminishes motivation for desired behavior. 6. Poor Socialization: Results in anxiety and fearfulness. 7. Neglecting Stimulation: Leads to boredom and undesirable behaviors.