When Skippy was jailed, Corby, realising she had her whole life in front of her, decided to do something she had always dreamt of...become a Tank Engine. She organised a meeting and after giving the Fat Controller a lapdance, was offered a job as a whore train. She performed well for years, but one day, after work, Corby was offered heroin by fellow Tank Engine, Gordon. She developed a hardcore addiction, and seeing her as a dangerous liability, the Fat Controller fired her.