Honestly this has got to be it. Nobody just grows up and becomes somebody like Pat, this only happens under a very specific set of circumstances, his brother appears to have turned out normal, without any of the problems that make Patrick a delusional loser. Momma really fucked up, I'm sure she told him he was "special" and despite all the metrics and anecdotal incidents suggesting he was just another low-IQ pussy, he was "perfect". A normal mother would be supportive but, be realistic, offer her son guidance that would not make him into a delusional narcissistic, unable to cope with reality. When you fall down a good parent would dust you off and ask you "what did you learn about watching where you step?", I'm sure Pat' mother would threaten to sue the people who installed the floor. Hindsight is 20/20 but, we all know that coddling children is never going to end well.