"Disruptive" vocal behaviour is common in nursing homes, but presents significant management challenges. Non-pharmacological approaches have been found to be effective and preferable interventions in such situations. A case study is presented of an 85-year-old woman who displayed frequent screaming and calling out during personal care assistance that, while apparently not distressing to her, was distressing to staff and other residents. A straightforward behavioural intervention targeted at changing staff behaviour resulted in dramatic change, with concomitant improvement in the staff-resident relationship. The case illustrates the unique and effective input Clinical Psychologists can provide to Older Adult services and nursing homes. (Contains 3 figures and 2 notes.)