Hmmm... If humans have to worry about spice, but birds don't, then where do raptorians fall?
Also, I agree with weenog, as in my campaign a character (who was a doppleganger) tried to bluff his way past a guard by telling the guard that there was a bunch of prostitutes at the main guard post. His bluff worked, but the guard wasn't going to risk losing his job, or his wife, for that. Player is having to learn that just because you can make them believe the lie, doesn't mean they care.
However, I think the point was the undead were stunned by the randomness and stupidity of it, and not because of college-boy staring. Just to clarify that the baboon thing is not equivocal, the baboon doesn't fall from the ceiling and scream stuff in english.
Also, if you had wanted to, instead of having the undead be gawking at the stupidity, or start looking for hot-sauce for lube, have them do the gnoll/troll thing. ie. want to eat the human.
....and given the gender involved, I don't mean to eat her in the good way.