Q: Why is training a worthwhile investment?

A. Consider the cost of replacing your soiled  carpet, your expensive piecedamaging someone else's property, injuring someone, 12 years of chaos.  Training and coaching doesn't guarantee that no ill will befall you because of your dog but it really really helps!   It is true in dog training as it is in medicine: behaviors can be avoided before they start.  "An ounce of prevention is worth a pound of cure."