When you open a fresh jar of peanut butter do you only work through one side until it is completely empty then start on the other side?
Or when you get those shallow tubs of hummus does it have to make it back home undisturbed? Then one of the baggers at the grocery store shoves it sideways into the bag completely ruining the symmetry.
There’s a “food theory” video on the ‘tube about how long you could survive locked in a food (grocery) store. It points out that food may turn rancid but can still be “fit” to eat - I think peanut butter fell into this category. I don’t know whether the video is factually accurate but it is entertaining all the same.