OMG. That reminds me of the Xen dude, of a potential hire at a startup who demanded "make it a big number" salary, and countless people who know some about one domain assuming their ex-food doesn't emanate odor.
Also, there's the sociological fallacy of assuming the biggest jerk must be the most talented, when it may well be a façade to impress people. There are some talented jerks, but all the talent in the world doesn't matter if no one will work with you.
PS: Shout-out to Steve Kablink for being awesome.