I suspect that an underrated rationality technique is to scream while updating your plans and beliefs on unpleasant subjects, so that any dismay at the unpleasantness finds expression in the scream rather than in your plans and beliefs.
I suspect that an underrated rationality technique is to scream while updating your plans and beliefs on unpleasant subjects, so that any dismay at the unpleasantness finds expression in the scream rather than in your plans and beliefs.