Sathnam Sanghera: Practical jokes, selling packed lunches, inspiring teachers, teaching colonialism

We chat to author Sathnam Sanghera about his school days and the teachers that inspired him, including:How his English teacher changed the course of his life.The problems he faced in his PE lessons.A love of practical jokes - including one on a school trip that didn't go down well.Developing a side business in selling his packed lunches.Introducing pupils in school to a more detailed history of colonialism.