Casual Friday is now a staple of the American workforce. It started decades ago with business men not wearing a tie on Fridays and it has taken a life of its own. With more and more businesses now embracing casual attire as the norm, one would surmise that Casual Friday would cease to exist. But  I’ve noticed men who already work in a casual environment pushing the envelope and creating, what I call, “Casualty Friday.”   So for this edition of the Fashion Friday post, let us consider what men should  not wear to work next Friday: First of all, no shorts. That goes for manpris as well (capri pants for men–a sad but current trend) No Flip flops, sorry. If you’d wear it to the gym, don’t wear it at work. Sweat pants are never, never OK. No meshes of any kind (as in see through shirts). No ball…