Ok, after some discussion in the colubrid forum, I am posting a question to see what the general opinion is. I have always heard that freezing is a very easy way to die - after a period of feeling cold, you just feel sleepy, go to sleep and never wake up. My local supplier of frozen food, tells me that is the way they humanely kill their feeder mice. On the colubrid forum, someone posted to say that it is inhumane and that feeders are first killed with Co2 & then frozen. Since I know for a fact that my supplier does not kill them that way, what has been the experience of others? Since I am now just starting to grow my own food, I would also like to know because I don't want to do anything inhumane.