I personally play a Drow, and yes, it goes off all the freakin time. Then again when you are spamming duelist's flurry you have damage ticks going off often enough that even if it was 5% you would probably be guarenteed to have a really high uptime.
Basically, this. However that does bring up the question of whether Faerie Fire stacks from multiple sources, which may or may not negate the positive impact of being Drow vs HO. Anyone have any word on this?
AHHAHAHA! I just finished this quest, and I have to say, this is my favorite quest I've done in the game. Absolutely hilarious. I kind of wish I could carry him around with me for the rest of the game. Evil companions are always the funniest (HK 47 anyone?)