According to adjacent-cubicle sources, Midwest Insurance employee Benjamin Vance checks his e-mail every two minutes. 'That little 'ping' noise is driving me up the friggin' wall,' co-worker Irene Snow said. 'It's like this sick obsession with him. Does he have nothing else to do but check e-mail all day long? It's not like he ever gets any, either. He just has to constantly check.' Added Snow: 'Jesus.' 