My office buddy - Jack

Jack calls of at our house in the morning before school and in the afternoon after school. He has recently taken to joining me in the home office to work on the home PC. Rosina used to be my office buddy (the sign on the door still says Bob and Rosina's office) when she was at Uni here. Now she is in Australia it looks like Jack has taken her place. I'd better get a new sign. She won't be pleased.