Half-Pint is outta there. Former Little House on the Prairie denizen Melissa Gilbert has announced that she won't be seeking a third term as president of the Screen Actors Guild, Variety reports. Vying to fill her seat of power are  and I only wish I were funny enough to be making this up  Morgan Fairchild, Robert "Knock it off I dare ya" Conrad and Alan Rosenberg (who played the same attorney on both L.A. Law and Civil Wars).