You ever noticed when you're nuking a piece of pizza how the edges tend to get really really hot before the middle? I can just imagine a mouse with his extremeties literally boiling before death.
uke01:
That is definitely something I would NOT recommend, and if done I would consider calling the humane society, ASPCA, or whoever else and have that person seriously looked into for animal cruelty. I'm not a PETA freak, I just don't like seeing animals suffer needlessly, and a microwave would surely be torture.
Injecting isn't feasible either. Most people do not possess the smallest of needles capable of injecting an air bubble or poison into the veins of a rodent. And more than likely you'd end up hurting the animal rather than killing it. And with poison, whatever you kill the rodent with will be digested by the snake and potentially kill it too.
For me, I simply deliver a quick flick/whack to the head and all is done in an instant. CO2 is acceptable and is veterinarian approved and humane society approved the last time I looked as a humane way to euthanize animals.
What exactly are you trying to accomplish? Euthanizing feeder rodents for a snake? Or shock value and coolness?
For pinks and fuzzies, I just freeze them. Flicking or whacking creates an unnecessary mess. It's only a few minutes before they expire. Suffocating is difficult in that small of a mouse because they're built to tolerate a small amount of asphyxiation. All of their litter mates and bedding material would kill them if they weren't.
But for crawlers up to adults, I simply deliver one flick to the head, place them in a lidded container (as they'll hop and jerk and fall on the floor if you don't) and then once they're dead, I bag them up for freezing.
The last time I tried the wall trick, all I ended up with was a still alive mouse who's bones were broke and re-arranged. Not pleasant.
And if you're curious about how hard to flick, my goal is to flick hard enough to cause a grape to crack open.
Nifty science experiment my husband found:
And speaking of grapes and microwaves and the like...take a grape, cut it in half lengthways and place them halves wet side down and make the stem hole end touch so they look like OO and nuke em. Fun stuff. =P