Dogs, as much as we love them, are at heart stupid animals that will do as we like, to gain our love. UFC fighters are self-aware humans responsible for their own actions. Fighting dogs for sport is simply wrong unless you think they are simply here for our amusement and you don't care anything for their wellbeing. I know my dogs. I know that they feel pain. My pit less than others, but none the less even she feels. People have a choice, dogs don't, in this instance.
I'm just curious. What about hunting? Fishing? Trapping? Sled-dog racing?
I mean, if you think about it, I imagine a deer that has been gut shot with a bow and arrow is in a fair amount of pain as it runs all over hell and gone trying to get away.
Isn't that a whip the dog musher has at the back of the sled?