Watch this. Beth Thomas, raped as an infant by her father. She suffers from reactive attachment disorder, which has pretty much turned her into an emotionless psychopath.
Well, I stand corrected I suppose. That seems to be an extreme case though. Either way I won't press it as I'm about to go to sleep.
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Bunny... :3
http://img.imgcake.com/baronvontoast/0413121622bjpguh.jpg