Rihanna has always been one to walk on (or forcibly straddle) the wild side. However, some recent developments (i.e. pretending to be Michelle Pfeiffer's character in Scarface, smoking pot in public, reconciling with this guy named Chris Brown) lead us all to question the newly 24-year-old's sanity.  I think I can speak for all of us by saying- get it together, Rihanna. [Photo via] - - - -