I think that that gets back to the whole memory thing. A person is unlikely to forget those kinds of decisions.

But there has been research indicating, for example, that judges' rulings vary with the time of day. In a way that implies that, if it were possible to construct such an experiment, you might find that the same judge given the same case would rule in very different ways depending on whether you present it in the morning or in the afternoon. For example judges tend to hand out significantly harsher penalties toward the end of the work day.