Feeding "in the enclosure", live or otherwise, really shouldn't make any difference whatsoever, as long as feeding time isn't the only time you open the enclosure and handle the snakes. As Seamus said, it takes time to condition an animal to associate the opening of the enclosure only with food....if you are handling the animals regularly between feedings, there is no reason for them to associate the movement in the enclosure or opening of the enclosure only with food.
And yeah Harald....EXACTLY like that, lol.
