 He was reportedly and according to his biographer, Chris Newton, a sexual predator, gaining the punning nickname "Huge Phallus" at the BBC.He was still having affairs in his late sixties, upsetting his friends by deserting Kathleen, his wife of 25 years for a woman named Romille.Falkus' masterwork "Sea Trout Fishing, A Practical Guide" (HF & G Witherby 1962, enlarged edition 1975) became a best-seller and has never been out of print; it "established his reputation as the father of modern sea-trout fishing" according to his biographer, Chris Newton.