That was the most rediculous thing I've ever seen. I don't even play on Nostalrius, but I just had to comment.
You're not doing your job, tanking the instance. People eventually get impatient with you as YOU are beeing inconsiderate and waste their time. And they call you out on it.
But instead of actually listening to just criticism, you do an even worse job. Finally you just stand around at the last pull, to show everyone how important you are. And when the mage asks you whether or not you are actually going to start tanking, you just leave. Because you are a special snowflake. Because your time is more important than everybody else's time.
Get over yourself.