No handling at ALL, until after this snake has settled in & fed at least 3 times at normal intervals. He is simply DEFENDING himself from what he perceives as a threat-
a predator. Fear is not conducive to a snake's appetite, & right now, he's afraid of you. Does he have secure-feeling HIDES? He NEEDS them, 2 at least, one cool side
& one warm side. Self defense is not "dominance" or "aggression"...it's just not. Baby snakes get EATEN by all sorts of things, & he shows good sense in trying to prevent
that...no one ever told him he's a "pet" & can relax...he'll only learn that slowly so you must be patient.