The incorrect file Many years ago, I worked in a catering company as a human resources manager. One night, I remember, I was working late in my office, I was very tired. I had to send an important email explaining a new process related to payroll. When I finished writing the email, I attached an incorrect file instead of the correct one, the incorrect file contained information about company-wide salaries. Immediately I saw my mistake and I said to myself: "this is a difficult problem". I went running to the IT department. They always had a support employee working all night, and I told him if it was possible to delete the email, because he had confidential information, and he said: "I'll see if someone opened the email, in this case it will be difficult to eliminate " Then, he checked the email and saw that nobody had opened it, and then made a process to remove it and solve the problem.