It is said that a dog is a man's best friend. Yeah, maybe. We don't have enough evidence for that. Surely they are everywhere and they populate cities and outskirts together with us for centuries. Most of human activities can be done with a dog on our side. Dogs sometimes act in ways that look misterious to us: we don't know what they say when they bark or growl in the streets and it's funny how they get in touch by sniffing each other's butts. They are faithful but there is no way you can eradicate their freedom to sleep on a dusty roadside and their will to run behind a passing car.