I know that the one time I fed live to my boa (we were out of F/T and there was NO WAY I was feeding her a F/T from the pet store) and I felt like a TERRIBLE person. Yet when I feed F/T it's no different than me handing a biscuit to my dogs. She might just be hung up on the thought of having a live animal killed by another animal when she could've prevented it, even if you've told her that they could get F/T.
I feel bad sometimes if I really sit down and think that my burger used to be a living, breathing animal. But I love burgers and chicken sandwiches and steaks, they taste amazing and they're good for you (not referring to fast food). There ARE these "snake sausages" that they make that are essentially hot dogs for reptiles. I don't know much about them though but that might be a way around her whole hypocritical argument.
http://www.naturalbalanceinc.com/pro...e=Reptile+Diet
I think she's just grossed out about having to keep dead rats in the freezer...
Ps. Indie fell into a car-full of VENOMOUS snakes. I probably would develop a phobia too if that happened to me as a kid. xD