OAK HALL CHAT Mina, 3:12 p.m.: Is tonight’s floor dinner still at six? My laboratory session now ends at 6:20. Jon, 3:15 p.m.: Yes, but we’ll set a plate aside for you. We’re eating in the ground-floor lounge; the kitchen is only for preparing the food. Mina, 3:17 p.m.: Thanks! I was bringing bread. Jon, 3:19 p.m.: I can pick that up on my way back. Could you bring something to drink instead? No need to make a special trip—we have water if that’s all you can manage. Mina, 3:21 p.m.: There’s a shop beside the lab. I’ll get juice and come straight over.