As Joan was getting to know her friend Kyle and his family, she was very impressed  by how much his parents loved each other.

"They're so thoughtful," Joan said.

"Why, your dad even brings your mom a cup of hot coffee in bed every morning, I learned."

After a time, Joan and Kyle were engaged, and then married.

On the way from the wedding to the reception, Joan again remarked on Kyle's loving parents, and even the coffee in  bed ritual.

"Tell me," she said, "does it run in the family?"

"It sure does,"  replied Kyle. "And, I take after my mom."