One thing I have come to recognize is how much inherant "HOPE" is baked into our theories surrounding trading, even those of us who think we're the most disciplined of traders.
An old saying is that there's "No such thing as an athiest in a foxhole", and the same goes for trading, when we are really down on our luck, when we are threatened with some major losses, we tend to "hope" for a favorable outcome so that we don't have to take the loss.