Susan effectively avoided small children in Halloween costumes all day, she's got nothing against them, she just wasn't in the mood. She's never in the mood to get up and answer the door all day long while the dog goes batsh*t.
She predicts she won't be in the mood for it next year either.
Susan put her Halloween to good use by getting her hair dyed back to its original color. She was so overdue for a cut & color she started to look like the dude from Rocky Horror.