One of the great things about expansions is all the "firsts" we get to experience. For example: my first 310% flight speed, my first time flying in the old world, my first archaeology artifact -- there are so many fantastic things that come with an expansion! However, there are also some rude awakenings. I was surprised when frost came back as a mage leveling spec. I was also taken aback at just how quickly I perished when I tried to take on more than one mob. Let me paint a picture for you.
Here we have this overconfident fire mage coming into Mount Hyjal for the first time. She grabs some quests and heads out to kill some fire elementals. She tags one, and puts Living Bomb up. It proceeds to make a lot of elementals angry with her. She shrugs off the multitude of fiery beings heading her way -- "I'll just AoE them down." That doesn't bode well. Slowly, her life force ebbs away, she gets weaker and weaker, there's a darkness coming over her, and then she's just ... gone.
I stare at my screen. Did that really just happen? Did I seriously just die to my first Cataclysm mob? I quickly look around the room; awww crud, yes, my husband saw that. Well, that's a bit embarrassing! I then take some time to see what the other mages in the area are running as. "Ahem, well I guess I'll go spec frost now ..."
I'm curious where and when the rest of you saw your first Cataclysm demise. Was it due to overconfidence or a wrong spec? Did you make it without dying until your first dungeon?