This is something that isnt a huge failure but at the same time it is something that does happen from time to time. Just be sure to be informed of what the filler is, where its located, and check it from time to time to make sure its properly secured in place. Yes I have seen cages where they got away and they will pretty much destroy your cage. A chuck of metal of its size will not go through you processor gracefully. It reaks havic on it.