Fezzik and I had an epic game of Magic: The Gathering.  He used a planeswalker ability to create 9 6/6 creatures.  I had an army, including a 12/12 creature.  He attacked with everything.  I killed a couple of his creatures and blocked the rest.  I ended up with 4 creatures.  he was out of blockers, so I attacked with everything and one.  I pointed out that he had forgotten to use his planeswalker’s other ability to create a 3/3 creature, which would have allowed him to block my biggest guy, which would have allowed him to live.  The net result is that he thinks he won, which I don’t mind.  I told him that in the future there would be no reminders, and he has to win or lose on his own.