I fed my boy his second large mouse yesterday.. And I went to put his hide back in the tank ( took it out cause it's a busy tank and didn't want the mouse running in the warm side hide, plus he got 3 other spots he can hide anyway)and adjust the aspen near him and he struck and bit me..I gently took my hand out of the tank and closed the lid and the light and let him be for an hour before I put the hide back in. Then he was all good.