Read the excerpt from Grendel . Thus I fled, ridiculous hairy creature torn apart by poetry—crawling, whimpering, streaming tears, across the world like a two-headed beast, like mixed-up lamb and kid at the tail of a baffled, indifferent ewe—and I gnashed my teeth and clutched the sides of my head as if to heal the split, but I couldn’t. How is Grendel characterized in this excerpt?