I've met people I thought were assholes at first. People I've become friends with have told me they thought I was an asshole at first. First impressions are exactly that.
True, but with Steve Jobs it goes beyond that: from innumerable accounts by people who have known or met him, it's clear that Jobs is an asshole based not just on a first impression, but on an nth impression for all values of n.
His wife disliked Steve so bad that after the dinner she refused to let him even consider the job with Apple.
Just a little anecdote about Steve Jobs that I always found funny and remembered.