Quote Originally Posted by Sheets12
but I stand there with tweezers just in case Mary J grabs a wrong way and the mouse ends up tearing her up so with the tweezers I reach in there and hold the mouth
Have you ever seen a mouse tear up your snake? My snakes grab from the head, from the side and from the rear end if they're excited enough to strike a retreating mouse. Never, ever, has a mouse had much opportunity to "tear up" the snakes. They might nip the snake, but have never broken the skin, and in my experience, once they feel a nip, they just constrict tighter and the mouse is more concerned with trying to breath than biting.

I seriously doubt that tweezers are necessary. Let your snake do it's thing, years and years of evolution have made her quite capable of dispatching the mouse without your assistance. If you're concerned about the mouse biting your snake to the point of assisting your snake with tweezers, you might want to consider f/t or pre-killed.