Depends on the snake. Some are weaker, and if they don't get the food they want, I'd have no doubt they'd just not eat until it killed them.
Though I found this only to be with baby snakes, ones that were picky or runty from the get go.
A healthy ball should eat eventually, at least I would hope. Just in case though, I'd feed it what it chooses to eat...don't go testing the theory.