On two separate occasions I have tasted mold on popcorn. Once was Orville Microwave popcorn and once was at Famous Players. In fairness to them - I never sent the nasty gram to Orville Redenbacher to they didn't have a chance to apologize and at the theatre they refunded my money - while they stared at me like I was crazy. Now understand - I am not the type to have butter or flavoring on my popcorn. Just plain old popcorn for me. I think that is part of the reason I have tasted this unmistakable resemblance to mold. Unmistakable because that is what it is.
I have attempted to research the process of drying kernels but found very little to go on. Logic dictates that the kernels are separated from the cob, dried, packaged, popped and eaten. Knowing enough about the properties of mold (requires organic matter and some moisture to grow) it seems reasonable to assume that this molding of my popcorn could very easily occur if the kernels are not dried enough or a few are overlooked.
Now I know this sounds like I have lost touch with reality. Moldy popcorn you say? Just keep in mind that on occasion whilst eating your popcorn - you will taste something vaguely familiar (in my case once it was mild and once it was so overpowering that I almost threw up - so there are varying levels) that just stays on your tongue and reminds you of the time you opened - and for some reason smelled the inside of a bag of moldy hot dog buns. Do not question your sanity - though many of those who consume popcorn floating in MSG, butter, caramel, ketchup and/or salt and vinegar flavoring may have a difficult time accepting the truth of this. They have been fooled...
Now I have an aversion to salad (unless I can wash it myself- but they look at me funny when I ask to do that at a restaurant) and popcorn. I also have one to broccoli but not because something happened to me. It's that old wives tale about the little green worms in it - that and the fact that I find the flavour repulsive. So all in all - my viable food group is diminishing.
Sorry if I have ruined your snacking ability. Please feel free to add to my aversions.