My source for frozen rats has dried up, at least temporarily (Petco's freezer has been busted). I'd order some online, except my SO doesn't feel so hot about a freezer full of rat-sicles. So I'm thinking I'll buy live ones and kill 'em myself until my source is restored. My question is, how can I humanely dispatch the rat so my snake will eat it, and will also go back to FT when I find another source? The key here is being able to switch back to FT. Thx.