"Exercise is the first part of your dog's formula for happiness, and it is absolutely the one thing you cannot skip." -Cesar Millan

After the walk, your dog will naturally go into the deepest form of resting mode. When [your dog] is in this mode, you can leave the house and go on with your day, secure in the knowledge that...all of that boundless energy inside [your dog] is being channeled properly and constructively. -Cesar's Way: The Natural, Everyday Guide to Understanding & Correcting Common Dog Problems