Behaviour change is often a desired outcome for carers and professionals whowork with people with learning disabilities and challenging behaviours. Managingthese behaviours in the short term is an important step towards this goal. This single case study presents the use of a low arousal approach in managingchallenging behaviours in a young man labelled with severe challengingbehaviour. This strategy focuses on the interaction of the carers with the clientand how their approach has an important impact on the behaviour of the client. Thestudy documents the incidents of challenging behaviour and shows a declinein their frequency from baseline over a one-year period. These gains weremaintained at five-month follow-up. The implications for services of thesefindings are discussed.