The main type of people I hope never to see at Wal Mart is the Jehovah's Witlesses, especially those with a table right in the middle of the main aisle that is impossible to bypass without being forced into a study. That is one major reason why I rarely go there--except for items that are almost impossible to get elsewhere or that are way too much hassle to get elsewhere. About the only major items I get there are Christmas decorations, and I have plenty of those on hand by now.
One thing I hope the witlesses don't do is pick up a supply of outdated eggs and start trashing others' Christmas decorations. As Wal-Mart also sells quite a few of those decorations, and having the witlesses around is going to dampen sales of holiday items (as well as cakes, ice cream, party supplies, music, videos, camping equipment, casual clothing, and so many other categories of goods), I am surprised the witlesses are even allowed in the stores at all. (At least allowed to set up their tables and peddle littera-trash.)