I dislike going grocery shopping, because I often get horribly distracted and end up admiring the steel frame of the building. But, some of the things I never get:
Scrapple: Unappetizing, never had it, not interested.
Souse: gross looking
Pigs feet
Pork rinds
Cow tongue
Wait... these are all from the meat aisle. I don't buy much meat to begin with. I can get roadkill on the way home
Not sure if I can come up with five that are always in there-
Milk, Bananas, and..........
Ice cream