Bob; My post was in reply to your observation that ..... "but banning the sale of any item that isn't in some way an illegal item on the bourse floor at the convention (i.e., you could get arrested for possessing it) wouldn't be right as I see it."

I see nothing wrong with the club officers, as a matter of club policy, banning slabbed chips at the club's annual convention. You are free to think otherwise.