BS: So what's been your favourite job or what is your favourite job?
TS: That's hard. I like - having students. I think that when you have students it keeps you on your toes. And I think that that is probably - that is - for students' sake I have to rationalise most of the things that happen here, underlies the sorts of things that are happening and get students to look at everything with an analytical sort of mind. I think it is that that I like most. But I do like writing things. It is, it is a great challenge.