If I was a horse...
I'd probably a thoroughbred. Not because I'm tall or thin or anything, but because sometimes I'm really mean and I can lash out at people for no reason, and other times I love everyone and want everyone to love me, regardless of whether or not I was mean to them. And as for a dog, I don't know which breed, but I have a certain dog in mind. My dog Josie, who is terrified of strangers and will bite at them, but loves everyone that she knows to no end. She's a Lab/Bassett.
If you're not practicing, someone, somewhere is, and when you meet him, he will win.