First, where did you get this BP from? Is this a "Petsmart" special? Second, it sounds like it is just stressed out to the max!! I assume you left him alone, and didnt feed for atleast a week yes?
I never understand these threads about super aggressive BP's... maybe because I've never seen one in person that acts like this. Sure my Super Pastel girl huffs and puffs but its not really a big deal..... To me its like a puppy barking and biting your hands or something. Thats how you have to look at this. He has to get used to you. Dont be afraid of your snake! Its small, not venomous, and its not going to bite out a chunk of your flesh...lol