There is this one who killed his mother. He was born before his Father, and married over 100 without divorsing anyone, yet, he was considered normal by all of his acquiantance. why?
From My guess, His mother died while giving birth to him and he was born on a month before his father was born. Of course, his father is older. But the month he was born before his father's birthday can. And I guess he was married for 100 years.
