Do any of you keep your breeder rats in the same room as your snakes? If so, does it, and how so, affect the snakes feeding response?

I know when I thaw my rats next to the snake racks, some of them are already ready to eat before I even feed, because they smell it. Yet, they haven't smelt it the week before, so I don't know if having the constant smell in there would ironically make them "used to" the scent and not be stimulated by it as much.