I just saw this last night. Healer friend and I qued up for Tam Tara and as soon as we all join the tank abandons. I ask the other rogue "How much did he sell his insta-que to you for?" His reply was "lol enough."

My healer friend and I left the dungeon without penalty leaving that poor sap in his own instance. Just remember kiddies, it doesn't bode well to trust someone who sells their body. Don't pay for people's ques.