I know exactly what you mean by "nose-pickers". People who stand in the middle of the aisle, just staring at the wall of products as if they've never seen anything like it before. They seem to congregate around the refrigerated areas, such as the bacon, ice cream, and frozen entrees, though I've also seen a few near the dried pasta and the peanut butter. Drives me up the wall.
Of course, I have my own dilemma with the bacon, once the nose-pickers are gone. Thick cut? Hardwood smoked? Cherry, Apple, Hickory? Peppered or Maple? And the number of brands available in my supermarket really should be pared down.
Just read this latest chapter to my son again, and he totally relates to this. "Like the people who always stand in front of my yogurt!"