The Monsters are due on Maple Street. Theme: Mankind is it's own worst enemy.
These evidence supports my theme because in the first one, when it said "mankind is it's own worst enemy" it is just saying that the thoughts of people can make you not have those same friends/neighbor. The second on supports it because Charlie had such bad and fear thoughts in his head he just reacted and made peter die. The third scene supports the theme because Charlie's negative thoughts made him think that he's friend/neighbor was the monster and just started stalking him at his house.
Evidence 1: At the end of the story the two figures was like we will wait until they brake one another.
Evidence 2: When Charlie thought that Peter was a monster he just shot him.
Evidence 3: Charlie thoought it was a neighbor that was a monster/alien because he's ear started all by itsellf.