i have two setups to breed a few mice for their pinkies (sad i know) but atleast im having them live happy healthy lives instead of those tiny mean cages with nothing to do but....well.... ahem.... anyways. i was wonder how you would or have humanely euthanized the pinkies? so far the best thing i have read was a burst of CO2 (which knocks them out) and then freeze, so they dont really feel pain. anyone have better ideas?