I won’t go into detail, but there is a family here today where the parents are half brother and sister. Each and every one of their kids has some medical, mental and/or physical problem. At least two kids died. They refuse to listen to reason.
“They refuse to listen to reason.”
Our Chief Resident made the crack at the time of the father/grandfather incident that everyone in her neck of the woods had someone in a wheelchair. This was an area that originally had a lot of intermarriage. This group has been intensively studied by geneticists over the last 30 years and things have changed.