All sorts of options here. Easiest since he is healthy would be to hold your ground and eventually he will get hungry enough to eat in his cage. Another option is once he strikes and wraps the mouse pick him up and put him in his enclosure. This way he gets used to finishing his meal in his cage. When im feeding some of my snakes get so excited that they jump out of their tub the second i open it and wrap the rat up. They are hanging half way out so i have to pick them up and set them back in before closing the tub. I would just wait him out though. Goodluck