Requirements:
~ Direbrew's Remote
~ Lead of your group
First start your group up and make sure they are all near you. Set dungeon difficulty to heroic. Then have everyone click the drill that pops up, BUT DONT CLICK IT. Have them click it, and they will be locked out of their account, since a Heroic BRD does not exist.
This just happened to me, and am locked out of my toon, haha. I'm currently whispering a GM on an alt since there is no way onto my toon. Great way to **** people off