How to Lose Players

I found this idea at Keep on the Gaming Lands and he got the idea from Lamentations of the Flame Princess. Like the Flame Princess says, let’s make this viral.

Come up with an evil GM idea that will be sure to cause your players to revolt!

This is not my idea, but the evilest thing I’ve seen done is to make all of the magical items in a dragon’s treasure horde cursed. The players will get a few cursed items and think the worst is over only to find out that more pain is to come. They’ve earned tons of gold and/or magic only to find out that they’ve grown weaker in their conquest, not stronger.