[TRICK] Instant Invites as DD/Heal for Dungeons

First Step: Get a RealID-Friend which can tank. If you got one, invite him to your group (there is a new feature).
Second Step: You queue for any Dungeon (random heroic Zandalari as example)
Third Step: Because your RealID-Buddy is tank, u'll have an instant Invite. Accept it.
Fourth Step: Let your RealID-Buddy-tank leave.
Fifth Step: Normally u'd get kicked now, but u wont.

Notes: If you abuse this to often, u'll still removed.
I did it once & nothing happened. Could clear the dungeon without my RealID-tank-buddy.