This will be short, but I just had to post about this.
Megapull over at Emerald Sanctuary made quite an astounding discovery. He found a bug that could quite possibly be the greatest bug ever in the history of the world (of warcraft).
Just a word of caution: This could be considered exploiting and as such you are subject to the EULA and face the risk of getting temporarily or permanently banned.
… but since it’s most likely something that is getting fixed during this weeks maintenance when patch 4.0.1a is being applied. I wouldn’t personally worry too much about it.