Never Events
[https://www.gov.uk/government/publications/the-never-events-list-for-2012-13]
In Britain’s National Health Service, this is the name for mistakes that should
never happen. (Only the NHS would have a logo for this, by the way.)
There’s been 762 [http://www.bbc.co.uk/news/health-22366147] over past four
years.