Fifteen thousand years passed since the time when the first gray wolves were tamed, domesticated and turned into dogs by our distant ancestors. It was enough to make the dogs our closest friends. Fifteen thousand years of artificial selection, make dogs obedient and helpful companions.
However, not all the dogs are born equal. Some of them are really mischievous little devils, some of them just born to have fun and take from life everything, but some of them are real stoics. They won’t even flip a treat from the top of their muzzles without masters’ permit.