I recommend you don't put one in a bong and get wasted. I did that once, forgot the mouse was in there I got so stoned, then had to give the little sucker mouth-to-mouse to bring him back from the brink of death. That got him breathing again, but all he'd do for the next week is jump as hard as he could and bang against the top of the aquarium until he knocked himself unconscious. Lived about a week, and then...queue funeral music.