If not in shed it is either husbandry related or food related
How big is the BP, what size enclosure do you have him in, what type of hides are you providing, are they tight, what are your temps on both sides, how do you measure them (type of thermometer), what is your humidity, how often do you handle your BP, what type prey are you feeding (size), how often, etc?
Also when it comes to feeding if it went for your hand instead of the mouse it has to do with temperature, this is why you use tongs when feeding.
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