Happily running around in my PvE Champ spec out of laziness in Conquest, I ran into a guildy playing on the opposite team. I cleanly sliced her in two with my freshly purchased R50 sword and a proper timing Bladefury. She had just enough time to call me some choice words in guild chat before
Lightning took out my power for just a moment, but took my internet down for 4 hours. I missed raid
The moral here is don't kill your guildmates or bad things just might happen, particularly when they're super nice and helpful ladies.