It was a quieter night from the plumbing point of view and Peter and I spent a couple of hours sitting in his kitchen waiting for another call. When we'd talked about plumbing for a while,  he asked me about archaeology, that's the second time he's done that - and he's the first member of my family to listen to the answer.  I think he was really interested. Then we got another call and it was madness again for an hour or two.