[run4yourlives]

When people dislike something intensely, the reason is not always what they claim, or even believe themselves.

That's a bit of an logic leap though. Common sense suggests that if someone is disliked by a person, the reason is most likely evident and known. Most don't dislike as a default response.

Assertions not following Occam's Razor need citation.

[barry-cotter]

Common sense = conventional wisdom. They're both wrong reasonably often. Have you never taken an instant dislike to someone within seconds of meeting them? Or indeed, felt a connection with someone you haven't known long enough to have any real bond? These are mostly subconscious reactions to demeanour, tone and (much weaker) dress.

You've heard "First impressions last", right? So obviously we judge people outside of conscious, logical thought processes.

Person and Costume: Effects on the Formation of First Impressions http://fcs.sagepub.com/cgi/content/abstract/4/1/32

First Impressions: Making Up Your Mind After a 100-Ms Exposure to a Face http://www3.interscience.wiley.com/journal/118597412/abstrac...

Confirming first impressions in the employment interview: a field study of interviewer behavior http://cat.inist.fr/?aModele=afficheN&cpsidt=3296559