My god. Is it a bad sign that your first association to the word "Redoubt" is a modern-age castle from Rise of Nations?
No, that wasn't my question, sorry.
A young lady crashes her car (no pun intended), and her mother, who is in the car with her, dies. The young lady is taken to the hospital. The surgeon arrives, but refuses to operate the young lady, stammering "I can't give surgery to my own daughter". How is this possible?