A human and a rat or mouse smell different, have different temps generally and move different. I have been bitten by one of our BPs but it wasn't during feeding at all and it was partially my fault and partially inevitable. We thaw all our rats IN our snake room for 2 or 3 hours prior to a hot water dunk to get the snakes riled up. And even doing that I have still never been bitten and once or twice a snake will come out of its tub looking and it needs to be picked up and placed back in by hand.
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