In the fifth book, two Dementors attack Dudley and Harry in an alley. Dudley collapses, and Harry uses the Patronus to drive a group of Dementors away from himself and his cousin. Mrs. Figg, their neighbour, then comes running in and reveals she is a Squib by talking about Dementors. Harry and Mrs. Figg carry the shaken Dudley home, though Dudley is convinced that Harry made the Dementors appear in the first place. After the confrontation, Harry wonders what sort of bad memories Dudley could have relived, as Dementors force people to relive their worst experiences. Rowling later revealed, in an on-line chat, that Dudley's worst fear was seeing himself for who he really was: a cruel, selfish, violent bully with no feelings whatsoever for others, and this revelation shocked him to the core. The experience does give Dudley a more favourable impression of Harry, as seen in Deathly Hallows, when Dudley is the only member of the family to accept Harry: he shakes his hand and thanks him for saving his soul from the Dementor attack, and shows some concern for him when the Dursleys leave to go into hiding. In his appreciation of his cousin's belated gratitude, Harry says good-bye to him using Dudley's former nickname, "Big D". In the film version, however, there is no such sentiment as Dudley leaves Harry before he can say any final words; however, on the Blu-ray/DVD release, a deleted scene includes the reconciliation between the two cousins.