This is also why we never see Jon at a workplace and why he is always home with his dog and cat. It’s also why he had no social life to speak of for years until he and Liz became a couple.
Jon is a cartoonist and thus works from home. Therefore, ANY work he does can be considered “homework.” Any art, sketch, doodle, etc is homework that can be eaten by Odie.
Is your name Steve Urkel: :D