Don't laugh. I worked on a multi-million dollar project that was derailed for a couple of weeks by an analyst who insisted that doing a bubble sort on unsorted

Don't laugh. I worked on a multi-million dollar project that was derailed for a couple of weeks by an analyst who insisted that doing a bubble sort on unsorted results from an Oracle query would be faster than using a SQL ORDER BY. This was based on a half-remembered class that used bubble sort. Pointing out that bubble sort is usually given as an example of an expensive sort had no effect. Ultimately Oracle won, of course -- it's orders of magnitude faster. But many hours were wasted and tempers flared.