"Buyer's remorse" doesn't quite capture what she was feeling.  "Cheated, humiliated."  Now, those terms would describe the feeling more succinctly.  Perhaps what had made the encounter so troubling was the fact that she didn't consider herself to be the easily duped, naive type.  The consumer mayhem of "Black Friday" surely didn't help.  Yes, that's it;  long day, fatigue.  That's why she gave in.  The comforting embrace of rationalization always helped to salve a psychic wound such as this.  But, stil