Last week Camilla and I went into London with two of her colleagues, to listen to Hans Rosling deliver the 2011 Pumphandle talk of the John Snow Society, "Epidemiology for the Bottom Billion - where there is not even a pump handle to remove!".
The talk was excellent - Rosling is a fantastic speaker - and well worth a listen if you're at all interested in public health or demographics. Afterwards we went along to the John Snow pub for the society AGM, which they got through with impressive speed. (Our connection with the society is through its president, Paul Fine, who is an old family friend, and we've maintained the web site for many years.)
We would have hung around to talk to people, but Camilla and I had to get up at an ungodly hour the following morning to drive to Portsmouth to get the ferry to Caen, so the four of us headed to Chinatown where we had dinner in the excellent Beijing Dumpling.
The train in and out of London was effortless, and Liz showed us how to take the right exit out of Paddington for the Hammersmith & City line and then guided us from Euston to the London School of Hygiene and Tropical Medicine. The train is a bit more expensive than the bus (if you want an open return) but faster and more comfortable, so I think this will be my preferred way of getting to London in future.