1912: Eight-year-old Cecil Day-Lewis entered Wilkinson’s prep school in central London. The future poet laureate got to know Nicholas Llewelyn Davies, one of J.M. Barrie’s adopted boys. When Llewelyn Davies took his friend to the playwright’s house in Campden Hill Square, the two youngsters went up to the attic and fired an air gun at pedestrians in the square.
Source: C. Day Lewis, The Buried Day (1960), pp. 72–4