Which detail best shows that grendel has human qualities as well as the qualities of a monster?

The details which best shows that Grendel has human qualities as well as the qualities of a monster:

Beowulf is an epic poem written by an anonymous Anglo Saxon poet. In the poem, Grendel is described as an evil monster who attacks the Heorot warriors. His monster quality can be seen from the incidences which describes that Grendel drinks human blood and eats human flesh for survival.Grendel’s human qualities can be depicted from the incident when he starts throwing temper tantrums at Ram. One can also find that Grendel expresses boredom just like humans do, thus making it clear for readers that he has human as well as monster qualities.