One of the quests for Black Temple attunement has you killing Al'ar while disguised as one of the Broken. Sort of a silly premise; somehow we're tricking Illidan into thinking Akama is still on his side because one of the 25 people killing his pet Phoenix looks like an old-school draenei. Blizzard's storytelling is generally a little lacking, although the scripted event when you turn in this quest is surprisingly moving.
What's so disturbing about this quest for bears is you have to wear the disguise when you kill Al'ar. And when you're disguised you look like a Broken, no matter what form you're in. It's very uncomfortable to be tanking things without looking like a bear. I almost fell off the Al'ar platform more than once, unsure of my footing. And that fight requires some shifting to cat form, so I had to triple-check that I actually had bear stats every time I was tanking. I had no idea how attached I was to my generic bear model until I had to tank without it!