“Bad behavior” is the biggest reason that pets are relinquished. Sadly many dogs don’t even realize their behavior is inappropriate. According to David Haworth, DVM, PhD, and president and CEO of Morris Animal Foundation, dogs thrive on having limits. As pack animals, dogs need a lot of structure–and as the owner, you need to provide it. You need to be aware of (and decide for yourself) what normal canine behavior is and what behavior is unacceptable.