You can do this only with a rogue.
When you are at Alterac Valley and you are going to start Vandaar/Drek'thar,you can
check if some stupid rogue/druid is behind the boss.Duno why they go there,think they feel pro.When he's behind the boss,just throw a distract so Vandaar/Drek will kill him.Had alot fun with this.
Know it's useless but it's fun