找对象先看他/她的家庭 真的很重要。有研究结果显示，谋杀、暴力 等等与基因有关，他的孩子有可能遗传他的基因。虽然女主的人间蒸发还没有法律结论，但本人相信他们那些老同学的直觉。
http://www.telegraph.co.uk/news/science/science-news/11192643/Violence-genes-may-be-responsible-for-one-in-10-serious-crimes.html
Researchers at the Karolinska Institute in Sweden analysed the genetic make-up of 895 criminals from Finland to see if violence was in their DNA.
The criminals who had committed the most serious crimes, such as murder, were found to have variants of two genes; monoamine oxidase A (MAOA) and cadherin 13 (CDH13).
MAOA is linked to dopamine levels in the brain, a chemical which makes people feel happy and fulfilled. CDH13 is linked to impulse control.
