I had one crawl into the manifold were he was hidding corn from my chicken feed. Didn't know it was there and started up the old 9n. Was running a few minutes when it started to smell like popcorn. What a mess bits and pieces of corn everywhere. After taking the manifold off and cleaning the carb twice it wasn't bad and ran better. A friend of mine said I heard they added cotn to the gas but this is ridiculous.
What's funny is I don't name my tractors but that tractor got it's name that day and will alway be called popcorn.