Once in a blue moon..what happens???

Once in a blue moon what happens????
Once in a blue moon Sans feels like sitting for a while; in the meantime she gets some work.
Once in a blue moon Sans feel like waking up late; in the meantime someone calls her.
Once in a blue moon Sans feel like eating a lot; that day menu sucks.
Once in a blue moon Sans feel like stop talking for a while; students in the class make hell.
Once in a blue moon Sans feel like going to some film; the movie will be off-the-theatres.
Once in a blue moon Sans feel like scolding someone; some1 make her laugh.
Once in a blue moon Sans feel like loving someone; she hates commitments.
Once in a blue moon Sans feel like crying; sans knows only to be happy all the time.
Once in a blue moon Sans asks herself 'wots wrong ??'; the answer will be.......??????