I used to feed live mice in my snake's normal habitat, watching it come out to 'hunt' the mouse.
I have since found out that in so doing, you may be conditioning your snake to understand that what comes into it's habitat is food and it might start biting. Better to remove your snake from it's habitat and put it in a separate feeding container.
Frankly, when I thought about it, there's still no difference between putting the mouse in one container or the other, because you're still reaching into a container to remove the snake, whether it's the normal habitat to feed or handle the snake, or the feeding container to remove it after eating.
In my logical sense of thinking, the snake would be more prone to biting the hand that reaches into the feeding container to remove the snake after eating. Normally, you would not want to handle your snake after feeding, so if you feed it in it's normal habitat, you would not be reaching in there after it eats.
Does anyone else have some insight into the psychology of snakes to offer sage advice on this subject? LOL
Erik