“Today the subject of my research is’ – at this point he looked up from what he was doing and smiled at me – ‘you.’ He has a most charming smile when he remembers to use it. ‘Really?’ I said. ‘What are you trying to find out? Do you have a hypothesis about me?’ ‘I do.’ ‘What is it?’ ‘I can’t tell you that. It might influence the data.’ ‘Oh! Yes. That is true. Sorry.’ ‘That’s OK,’ he said. ‘It’s natural to be curious.”