I know people with that issue. I don't have a problem with different foods touching, but I do tend to eat each part of the meal separately. I have a little of each every once in a while, but yeah, the tendency is to have it progress from one part of the meal to the next.

At work I also have my tendencies, but again, it's not a rigid outline. I tend to do certain things in a certain order, but I do change it up according to priorities.