I figure brain damage if he is taking that route
LOL!!
Genetics are very important. Just have kids with an alcoholic, schizophrenic, diabetic, fattie or dumbass if you really want to test this theory.

Also, back in the day people basically felt fat people should at least be pleasant because they were at a social disadvantage. Now fat people are a bigger pain in the butt than anyone and it's the prettier women with self esteem issues.
Guys should always go for the pretty, skinny chicks in bars if they've been on a losing streak.