Is Grendel a Monster?

Well, my answer to the question "is Grendel a monster?" is that he is definitely  not human. He is a monster but I only think that he is a monster on the outside, but I certainly wouldn't call him civilized. I think that he acts the way he does because he uses his instincts. It is in his nature to eat when he's hungry just like it is his nature to sleep when he's tired, just like everybody else. It's not necessarily his fault he acts the way he does. He is the way he is because he doesn't know any better. I'm pretty sure that nobody ever taught him basic manners and courtesy. He is just like a wild animal, if not tamed then they act on what their instincts tell them, and that is exactly what Grendel is doing. His instincts are telling him that there are very tasty people bothering him and it would not only be easy, but it would also get rid of the noise that is causing him pain and it would fill him up. Why not kill two birds with one stone? We don’t call uncivilized people monsters, so why would we call somebody that is just like one of us a monster?