J.B. rang to invite my mother out to lunch. He's someone she's known for 50 years at a guess. When my father left Blaw Knox Engineering to set up his own company J.B. was one of the two chaps he took with him.
She couldn't remember his first name even though he'd just told her. "Ah, yes, John." And when she was signing off- and she was writing the appointment in her diary- she said, "I've forgotten your surname " and he had to tell her again.