The only way to keep players from doing something stupid is to Just Keep Talking.
Sadly, there is no way to keep the DM from doing something stupid, although offing one of his favorite NPCs might shut him up for a couple of minutes.
How to Forum
Dear people of the internet: Please stop doing these horrible idiotic things when you talk to each other.
The Best of 2012
My picks for what was important, awesome, or worth talking about in 2012.
Good to be the King?
Which would you rather be: A king in the middle ages, or a lower-income laborer in the 21st century?
Philosophy of Moderation
The comments on most sites are a sewer of hate, because we're moderating with the wrong goals in mind.
Push the Button!
Scenes from Half-Life 2:Episode 2, showing Gordon Freeman being a jerk.