I hate to think of what I’ve cost the NHS since I was diagnosed with cancer in 2004. This year alone I’d need to factor in 12 outpatient appointments, seven MRI scans, and a course of radiotherapy. And “the worst is yet to come,” as one consultant I saw wryly reminded me. But sufficient unto the day. I’m grateful to be alive and kicking, and having plenty of opportunity to observe how health professionals’ behaviour affects patient well being.