overspecialization

When I returned from fetching her tacos and Hostess Sno-Balls, my One True Ex quoted a familiar aphorism. I asked who said it; she didn’t know; so I googled and found it attributed to one Ernestine Ulmer. Who? So I searched for “Ernestine Ulmer”, and found the name mentioned in one obituary and a couple of genealogy sites – and cited fifty times for the aphorism.