Different personalities.

Dogs have different personalities like us. They can be Hyper,Laid back,Calm,Dominant,Shy,Scared even confident. So if you were looking for a laid back kinda dog and got a Hyper or a Dominant one instead don't be surprized you just did not do the research right. You maby did not spent time alone in the shelter with the dog so you get to know it's real personality. Sure he may give you a kiss and oh right away you get him but what happens when he bites you at home? Then you had to return him because thats not what you were looking for. So please don't blame the dog for it's personality blame yourself for not doing the research about the dog and understanding the dog.