Here's an interesting video from Scott McCloud who is a terrific animator and author discussing art, life, and cartooning.
Two important things to note:
first: how Scott gives some of his personal background and how that relates to his concepts and art (remember pulling from your own experience generally results in the most original and interesting work you have to offer)
second: how Scott's "out of the box" narrative style of presentation reflects the "out of the box" variations in cartooning that he discusses (like he mentions this is just his nature- getting in touch with your own instincts and nature will inform your art and in a larger sense your choices and views in life)
As an extra credit assignment try to create an "out of the box" comic that uses space and direction in an interesting way (due when we return from break)