When you're having such a shitty day that you're investigating why something is (obviously) wrong and after ages you find a bug that you just don't even want to admit you made, but then you realise that, even though that's there and would fit the weird behaviour, you realise there's actually a safeguard that, while it doesn't correct for the issue properly, it at least prevents the whole thing from going apeshit...

Oh gods please show me why this is behaving so wrong even though the massive bug is kind of cancelled out....