Ok. The opinion of most seems to be that freezing is inhumane and I certainly don't want to do something that is cruel in order to feed my snakes. I'm not sure about the cervical thing. What about stunning? How would I go about doing that? I heard once that you can put them in a pillow case and bang them against a wall, but I'm not sure that's the best way either? I would assume that you do it with as much force as possible to make it quick and painless for them? (I'm opposed to using CO2, as having suffered from an excess of CO2 in the home I lived in during my first pregnancy, I know how uncomfortable it is to sit there not being able to breathe deeply and get enough oxygen, so I don't think that method is any more humane than freezing and probably less so).