that sucks bum love... but its ok... you have options.
1) be kind and understanding... put it carefully back in the cage and say soothing things THEN run off and wash your hand and call your doc about a tetnus jab
hey! we had 2 rats once, ruby and luna, and when luna died, ruby went crazy and would bite us while we slept (she went so crazy that she devised some kind of mechanism to get out of her cage, just so she could hunt us and devour us). it sucked. she lives on a farm now.
1) be kind and understanding... put it carefully back in the cage and say soothing things THEN run off and wash your hand and call your doc about a tetnus jab
OR
2) smash it on the head and kill it
thanks for listening.