In my neverending quest to assume secret identities, I become the undead.
This was part of a quest reward I completed recently: a drink with 5 charges that granted various illusions for ten minutes each. Other than the occasional uber equipment reward (read: extremely occasional), this reward was our favorite.
Our group (it’s not a party, dammit!) drank up and started to put the hurt on some dinos: one guy was 2 feet tall, the remaining four were skellies. This Horde rogue wandered past and did a virtual double-take. He passed, he stopped, he turned around and stared.
Through the magic of /em’s, he told us that he had been trying to say hello and ‘sup for the past few minutes until it dawned on him that all was not as it appeared. He seemed like a nice enough guy, for a Horde, even with the flesh dripping off his skeleton, so we allowed him to pass through Our Zone unmolested.