Mrs. O'Five has a random thought:
I'm not sure if i has a message, but Han does seem pretty angry, even though he convinced his mom to dress as Chewie.Mrs. O'Five said:
look at this interesting drawing on a fabric designers blog I love: i dont get it, if it's a message.
http://heatherross.squarespace.com/view-portfolio/illustration/5196440
han solo is evil? guns are evil? trick or treating is evil? han shot first?