The human's best friend

I have been with alot of friends who were humans like me and one of the difficult thing which I find lacking in many of them is loyalty, even the few ones who appeared to be loyal , it was later that I discovered that they were only loyal based on the benefits they get from me and not because they want to be loyal to me for the sake of the friendship , but ever since I started having dogs , I have realized that dogs are loyal to you whether in good or bad times , whether they get benefits or not..