Y’know what?  Just in case you need it, I’ma give y’all permission to get ANGRY.  Life ain’t always sunshine, lollipops and rainbows.  Sometimes it’s cold coffee, parking brake in fifth gear, and nails on a chalkboard.  And I don’t believe it’s healthy to try to *smile* through it.  Hell no.  Holler a little.  Break something, throw it across the room.  Fill a hanky with tears and snot.  There is nothing inherently bad about setting your cool aside to empty your rage tank.  HOWEVER, that being said, I encourage you to keep your calm at arm’s length; that way when your frustration is safely, suitably and satisfactorily vented, you can pick it back up and go on about your awesomeness.  Love y’all.