Holding ministerial office or leading a public body involves challenges and duties that do not exist in the private sector. Using recent examples of high profile resignations by public office holders, former Commissioner for Public Appointments Peter Riddell argues that although it is rightly difficult to remove some public servants, it is also incumbent on them to know in what circumstances they should offer to resign. When they do not then do so, it should be difficult – but not impossible – for a minister to remove a person when confidence in their ability to fulfil their functions has been lost.