A few years ago, I was trying to figure out how 9 combinations of activities, 9 "if this, then that" trials and all their combinations, caused certain events to happen in a help desk developed by a major company. Their engineers couldn't answer my questions as to why I was getting an odd result when certain actions were combined. I decided to hand-build a truth table to show each possible case (in between my regular job duties) and after a month was able to show that a certain sequence of events gave a "predictable" but undesirable result that no one had anticipated. I sent the tables to the engineers and they fixed the "bug" Since the possible results of a set of actions grow exponentially, if I had had this procedure I would have saved myself hours (days) of work! Thank you for the procedure - it's a great help so, absolutely, keep showing off!!!