D.O.G. is the sweetest boy. He is young, energetic, loves to play keep-away, and will talk to you when he wants to let you know something (hungry, needs to go out, wants a treat, etc.). He is always happy, loveable, and very sweet. His tail is always wagging. He is the best boy and I am heartbroken to even have to post this. I am crying as I'm typing. We have another dog from the same litter (his brother) who is bigger and more chill, but that's not the issue. D.O.G. wants to be in charge and they have been fiercely fighting for dominance. D.O.G., being the smaller of the two, appears to be the instigator. We have just had my 8 year old niece move in with us 3 days ago and they want to play with her and have started fighting fiercely twice in just that little time, and I am afraid with the fighting she will get hurt. This truly breaks my heart. I promise you when I say he is the best, sweetest dog. I just have to go with the one who's not starting the fighting.