Lyric discussion by Googolplexiglass 

Cover art for Northfield, MN lyrics by Casiotone for the Painfully Alone

My interpretation is that the story is wrapped around a household incident where a guy burned popcorn. The fumes lingered in the home so long, that Sally Cinnamon lost control of her rational self and decided to leave the guy immediately, bringing the baby, known as Tim, with.

One simply cannot drive safely while raging over a bad case of Arson Redenbacher. The male subject, Sparks McSpanks, simply pressed the popcorn button on the microwave, despite clear instructions on the bag to stand by, listen, and remove when the popping stopped. This kind of tomfoolery is why Orville died far too soon.

/rant

My Interpretation