I knew that pressure ulcers were caused by immobility and the survey showed that many nurses knew that too. They were not using official risk assessment tools but rather their own clinical judgement to screen for risk; and they were right. Nevertheless, it took writing this paper to prove that no risk screening tools could do a better job that nurses using their own knowledge and experience to determine who was at risk. Unanimously nurses wanted to simply focus on mobility; immobility being the only risk factor nurses need to focus on. Because there is no evidence that some of the risk screening tools are better than nurses’ clinical judgement (Pancorbo-Hidalgo et al., 2006) it seems sensible to focus on immobility. I believe care staff in residential aged care facilities, many whose first language is not English, will find it very easy to screen using clinical judgement whereas trying to read, and score, a numerical tool such as the Waterlow or Braden, written in English, is time-consuming.   Sharp CA and McLaws M-L “Estimating the risk of pressure ulcer development: is it truly evidence-based?