KEEP A DIARY
As a school principal (now retired) and as a person who has connected with the training of teachers and through my blog and other writings, I have ALWAYS suggested that those working with people keep a detailed diary outlining the contexts of their association with people. Most certainly that was my practive from the commencement of my teaching career in 1970. My message to teachers, colleages and others working with people, is that you never know when documentation may be more than useful in helping refute false representations.
Ongoing events within Australia and the fact that alleged matters, years and years and years old, can be visited upon people remind me of the wisdom behind what might seem like irrelevant record keeping. Prudence outdoes suppose irrelevance every day of the week.