I recall years ago someone posting on a very serious, professional board, that their company was hiring, and they were looking for people to fill management positions in "Ventricular and Monaural".
Great

on the board, until the original poster shamefacedly admitted he had typed "Vancouver and Montreal", then "Spellcheck - accept all corrections".
To make him feel better, someone told a story about sending a letter to the "Soandso Lumbermen's Association" which spellcheck helpfully changed to the "Soandso Lamebrain's Association".