We refer to that as the "High INT, Low WIS" problem. A lot of brilliant people are very book smart but don't have the common sense of a grapefruit.My one sister is like that. She knows such random things, like who was King of England so many years ago and crap like that. She never had to study in school, got good grades. But has no street smarts to save her life. She would turn left into a lake if the gps told her to