My male and female both did this same thing on feeding day yesterday. Both of them were lunging out of their tubs and snapping when I pulled them out at feeding time... lol Both of them immediately struck and wrapped, but when I checked on them a couple hours later the rats were laying in their tubs. I heated them back up with my heat gun and both of them immediately struck and wrapped again. That time they both ate, though. I'm not sure why they're doing this...