Originally Posted by
missingpieces
For 1. sometimes dogs do this in attack mode and sometimes they do it when they are scared, I have had many dogs that do this when they are scared. Sometimes they do it when they are about to start playing. It is hard to say what the pit is thinking, don't just assume that it is going to attack just because it is a pit. There are no bad dogs, just bad owners.
For 2. the only thing I can think of is that he is either trying to go towards the fight when you are pulling him away or that he wants to get as far away from the fight as possible.
These are just possibilities, I hope they help. It is really hard to tell without actually seeing the dog's behavior first hand.