I came up with this plan the first time I got ganked. I would keep a list of names of all the people that killed my horde priest. Then I would level an alliance character. Then I'd find the people on my list with my alliance character, start a party with them, and then own the crap out of them in a dungeon. Muehehehehe! And if I'm in a group with one of my horde characters and find someone that's a dick, I can get them later with Nipperdoodle. HUAHAHAHA!! So watch out ::serious face::
EDIT: I am now putting this plan into action with my cutie pie, gnome death knight--Nipperdoodle.