Safety Rules sat down with Margo, a fantastic oncology nurse, who told me about the night she gave a patient too much insulin, and he coded. He lived, and Margo is still at the same job. The hospital where she worked supported her and included her in a Root Cause Analysis of the event. Margo is now a well respected nurse leader at her place of work.  This story could have ended up so differently! In the interview, she opened up about how the error went down, and we talked about the slowly changing culture of healthcare from blame and shame, to transparency and truth.