Yesterday I made a mistake. I was typing in a number and hit a 7 instead of a 4 on the 10-digit key pad. I missed the mistake and the double check I had in place missed it as well. The calculation was in a reasonable range of where it should be and so I pushed forward with the report and sent it out. The mistake was caught and pointed out in the big weekly department meeting by the VP as we were looking at the report. I was embarrassed, to say the least. But more than that, it pointed out a flaw in my Quality Assurance (QA) checks. There was not an opportunity to fix it or even investigate it during the meeting. However, immediately after the meeting I went to my desk, found the problem, fixed it, sent out an updated report, and added a new QA check that would make it so this problem would not happen in the future. Once I reached my desk, it took no more than 60 seconds to do everything I just listed, but the damage had been done.