It was probably because they were in the room and he did not know them...or because he was getting ready to shed. Cee Cee musks strangers. And she bit me when my ex's stupid girlfriend stuck her face up to the tank...lol. I'm sure the bite was meant for her. Heh heh...good Cee Cee. Yeah...just give him some alone time until he sheds....my snakes always want to be left alone before a shed.