Honestly blown away right now. There's proper protocol for humanely killing feeder mice? I understand not torturing them, but the amount of time they realize they have been picked up to the time they are unable to process thought or pain is within a second. Ever been chocked by someone trying to kill you? I have. It is very fun to say the least. Jokes. You literally gasp and fight for every last breath hoping it isn't your last. Hell when it's my turn to go, PLEASE break my neck. Don't let me suffer.
Edit. Spelt unable wrong.