For some reason when removing items from an array I am left with keys like 0, 2, 3, 4, 6, 9 instead of 0, 1, 2, 3, 4, 5. So I am trying to figure out why, and what I can do to fix it without sorting everything via `sort()` as that will put stuff in order. I just want to re-key in a matter of speaking.