From my early 20s to my mid-30s, I too worked in the box office, at some of London’s top theatres. View image in fullscreen Box office staff on duty at His Majesty’s Theatre, Haymarket, London, 1924. Photograph: Topical Press Agency/Getty ImagesFront of house (FoH) theatre staff are all too familiar with such disturbances. Working as a box office assistant, I soon realised that I needed to know the running time. Another West End usher, Adi, went to the aid of a customer who, during an expensive West End musical, was vomiting over the balcony on to the people below.