Harry suppressed a snort with difficulty. The Dursleys really were astonishingly stupid about their son, Dudley. They had swallowed all his dim-witted lies about having tea with a different member of his gang every night of the summer holidays. Harry knew perfectly well that Dudley had not been to tea anywhere; he and his gang spent every evening vandalising the play park, smoking on street corners and throwing stones at passing cars and children. Harry had seen them at it during his evening walks around Little Whinging; he had spent most of the holidays wandering the streets, scavenging newspapers from bins along the way.