Before the accident, Dad would sometimes emerge from a long sojourn on the toilet -- that most prosaic of locations -- with a faraway look in his eyes.
"Are you thinking about me?" my mother would tease.
"No, I'm thinking about science," Dad would reply, the opportunity to pay his wife of nearly 40 years a compliment completely escaping him.
Read more at: https://www.cnet.com/science/biology/features/my-fathers-beautiful-brain-how-a-traumatic-brain-injury-changed-our-family-forever/