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.
Same. When I was young, I would RAGE if a pea so much as whispered to the mashed potatoes next to it. Now I reflect that I have bigger problems than this and don't stress about it. Medication also helps. Somewhat.
A friend's dad feels so strongly about this that he has cafeteria style trays so each food item can have its own little area walled off from everything else.
Man, I'm the complete opposite. I tend to mix everything. As a kid I would even shape some dishes into a smooth rectangle after first crushing the potatoes and mixing it with the rest.