the only risk would be a non-digestible piece too large to be passed. in nature it happens all the time, and in captivity it also happens. they cannot digest cellulose-based fibers, so they cannot digest wood (cows can do that and they need half a dozen of stomachs and re-chewing to do so). but thats no problem as long as the pieces are small. in nature they often get small stones, or leaves, or small pieces of wood, or some sand or soil or feathers. and in captivity they gulped down chunks of sphygnum moss, paper towels, and all kinds of substrate. and when it comes to food items, teeth cannot be digested and hair and feathers are really hard to digest. so, relax. its nature. what goes in and cannot be digested/utilized goes through. and F/T food items exploding is most often because the skin has been heated a bit too much, when you go over a certain temperature the skin really loses its resilience. one extreme case would be human dishes like crispy duck or chicken wings, without the heating the skin would be as sturdy as leather.