I've got to side with Jen on this. I've heard/read some real horror stories about live prey taking chunks out of snakes, and have seen some nasty looking injuries in pics. A couple weeks ago, I placed a live medium rat in with my 2kg female. She immediately struck and constricted, but didn't get a good hold on the head. The rat immediately started biting. Since I was right there, I was able to intervene by grabbing the rat's head in my forceps. Since then, I will NOT feed anything larger than a fuzzy rat without stunning first! With a good sharp blow to the head, I seriously doubt the rat knows its in pain, and in fact may be dead even though still moving.
When I was a kid, my dad and I decided it would be a good idea to breed rabbits. We soon discovered that rabbits are quite prolific, and quite difficult to sell. Having eaten wild game many times, we decided to butcher the unsaleable rabbits. They were dispatched by removing their heads with a hatchet. Once that was done, we got out of the way. If you're not experienced with rabbits, you might not know that they have claws on the order of a cat's claws, and can lay you open quite nicely. The rabbits would flail wildly for a few minutes after their heads were removed. Do you think they were feeling pain?
"Stunning" a rat or mouse very likely REDUCES the pain and suffering of the slow death from being bitten, and then suffocated by a snake. All that being said, I won't walk away until the rat is either dead (and no longer moving) or in the jaws of my snake.
"As opposed to getting impaled by needle teeth and strangled to death by a snake? If I were a rodent, I'd prefer a quick hard impact to that."
Interesting (to me) side note: After reading this thread less than an hour before this was posted, I seriously considered posting almost the EXACT same words! I generally stay out of these types of threads though, so I went to bed. This morning, when I saw the continuation of the discussion, I decided to post.
Sorry if I've ruffled any feathers, or grossed anyone out with my rabbit story. If nothing else, I hope that you, Jen, at least feel a little support here.
Steve