NOTE: This trick will probably only work on Kazzak (EU) Horde & Alliance, Vek'nilash (EU) Horde and Magtheridon (EU) Horde and Cho'Gal [US] Alliance.
Probably other servers as well.
You see, ask a memeber of a top.10 World guild (I asked Maa @ Forte] to link me an item FEW has got (In this case, Halbard of Desolation, a black temple Polearm)
Now go join a BG and link it and say " OMG IMBA ITEM!!" Go to the raid tab and see how many that got kicked off.