So very true. My son did a science project last year. Took a McDonalds fry and put it in a covered glass container. Did the same with an In N Out fry. In a few weeks, the In N Out fry was green and fuzzy. It has been over a year now, and the McDonalds fry still looks exactly the same as the day he put it in the container..
Same goes for McNuggets. I dropped a half eaten one between my car seats a few years ago and forgot about it until over a year later I was cleaning under the seats and found it and besides being a bit dried out it looked exactly the same as the day I ate the other half. Makes you wonder.