Tell us about your disastrous admin errors and worst clerical mishaps

Sometimes making a mistake on paperwork is trivial – and other times, it can be catastrophic. Photograph: elenaleonova/Getty Images

Have you ever had “just one job” and messed it up?

As the NSW Liberal party deals with the fallout of a “mind-boggling” administrative error that saw it fail to submit the paperwork to run candidates in eight local councils, we asked Guardian staff to share their own worst clerical mishaps.