Griefing in Minecraft

[Arjahn]

It's fun when you're just goofing around, if it's a more serious survival game and you make someone lose all of their items than that's a bit much.
Me and a few of my friends have a server and I made a piston door to enter our fortress that was activated by a lever and left it up for a few days. Then, after everyone got used to it, I made a pitfall TNT trap underneath where they would pull the lever which I re-routed to a TNT block underneath the sand, so when you pulled it you fell just enough blocks so that you wouldn't die on impact, but then TNT fell on you and you exploded in an obsidian pit.
Needless to say, that annoyed quite a few people.