i guess this could be considered a noobish mistake, but i seriously dont know how it couldve happened. I was running scholo with my lvl 56 disc priest and a friends lvl 70 hunter, and i had trying to kill the lady behind all the undead (for the doctor quest). So i rez and go loot her for a staff, which was way better than mine, when all of a sudden, one of the spiders comes out of nowhere and has a bunch of undead kited with her! and only to make thing worse, the spider doesnt just go straight throught the straight-away, but turns the corners and kites even more undead! i died in like 3 seconds, and my friend was pist off cuz he also died...
i never noticed i had aggroed someone, and well, i had never seen it, so i was like WTF?!
lol i stayed stunned on my chair for who knows how long