Flippy has a severe case of post-traumatic stress disorder. Whenever he sees or hears something that reminds him of war (for example, gunshots or the sound of a bonfire), he goes crazy and kills everyone around him, because he remembers the past.
Monty's face looks like my face when I don't get enough sleep so i have to wake up in the mid of the night because there is so much drama out there/out of my room .-.