You adopted a dog. You Googled how to help it adjust. You found the 3-3-3 rule. And now, weeks or months later, you're still struggling. Here's why, and what to do instead. By Avi Kornblum | Affordable Compassionate Dog Training The Rule Everyone Quotes, and the Problem Nobody Talks About. If you've recently adopted a dog, you've almost certainly come across the 3-3-3 rule. It's everywhere — rescue websites, adoption pamphlets, shared endlessly on social media. The idea is cl