Mr. Rogers
I've met nice ones that were kept outside and mean as shit ones that were kept outside. I'd like to say it depends on the owner, but since the meanest and nicest outside dogs I've ever met were owned by the same person at the same time I really can't. They were both working farm dogs, same breed and everything (pretty sure they were even the same litter). The only time those two dogs were allowed inside were when they were patrolling the horse stable (that was their main job since my aunt and uncle kept show horses).