Now I have a couple decent supplies of frozen, and prefer to stock up with a few months supply, sure you might waste a couple, but kinda comes with the territory. I used to pre-kill a few and freeze, CO2 was a bit complicated, CD is much easier and simpler for me. I wear mechanix gloves, good grip, won't get scratched, would have to be one hell of a bite to get through, but that isn't likely if you handle by the tail. I used a small plastic cutting board and a wide plastic putty knife with the edge rounded, both must be easy to clean if the rat messes on the board. Hold the neck down and trap the head with the putty knife, pull the tail upwards about 45 degrees hard so the body stretches out and relaxes instantly. If you then plan to freeze or if the snake won't take it, put it in the back with the freezer on a peice of cardboard at a cold setting so it freezes about as quick as it can, will be much better when it thaws than if it freezes slow and ices up.