Since he is so small when he bites you it isn't going to hurt so just deal with it handle him about 15mins a week and after about a month he should start to warm up with you. Or you could do the t shirt trick which is you put a t shirt in your pillow for about a week so it gathers you scent and then cut it up and place it in his hides so he gets familar with your scent and knows that your not a predator.
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