Beware the Evil Snowman

The snowman grinned malevolently as he watched his prey from the top of the toboggan hill.  This was the longest run in town and the children had chosen its peak as the place for his creation.  But their building had been clumsy and he despised their lack of skill.  His bottom was lumpy.  His middle was full of grass.  And his head was so large and misshapen it threatened to roll right off his shoulders.  But worst of all was his face.  Two stones for eyes.  A small twig for a nose.  And a curl of frozen dog poop for a mouth.  Oh, the indignity!