being a morph has nothing to do with personallity.... It makes no sense why would it?

the only thing that i know of that causes something different than just looks is the spider wooble and thats still not going to cause aggression, they just don't move the way they want to sometimes.

im sure theres just as many aggressive morphs as there is non-morphs, which in the ball python world, isn't many. he will most likly calm down with handling, don't worry.