We often hear the term blind spot with respect to an obstruc­tion in the field of vision, or an area in which one fails to exer­cise judg­ment in an eth­i­cal dilem­ma. But I could see nei­ther an obstruc­tion of the field or an eth­i­cal dilem­ma when I recent­ly wit­nessed a col­league expe­ri­enc­ing a “blind spot moment.”