My most memorable moments aren't as dramatic as yours (collectively) and I don't have screen-shots to hand so it's a bit off-topic, but hey....

First - getting all 5 characters in my first team to hit the same target and move together! Woohoo!

Second (and far more recent!) - a pair of level 80s having a go at me when I was doing the Grizzly Hills daily PvP quests at level 73 and them quickly regretting it. I'm pretty sure they didn't get to complete the quests that day.

As I said elsewhere, I tend to just leave people alone but I bite hard when provoked