Ok well swapping the warm side isn't necessary, the temps and humidity on your setup would really help us. Also if he refuses on Friday don't try again the next day wait a week. Also try not to mess with him on days that you plan to feed him. Also it's pretty normal for ball pythons to be timid and attempting to hide from us.

Like we've all said we need information. It is difficult to tell you what the issue could be with out knowing your husbandry.

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