Maybe those weird airport self-help books were right. Maybe the key to achieving anything in life is confidence, swagger, acting like you know what you?re doing, faking it ?till you make it, etc. It works for wine tasting, and it seemed to work, temporarily, for one unnamed man who absconded from a Costco in Menomonee Falls, Wisconsin, on Friday with 24 bottles of Hennessy cognac valued at $1,500.