Wont shop at checkers again!!

5th time in four months that we find spoiled meat bought before the sell by date. We buy our monthly groceries from checkers in ben fleur, witbank, as it is close to where we reside. I made a habit of going through everythings sell by and expire dates before i take it from the shelf. For some reason every month we end up with one or more meat item that is not even safe for animal consumption. This is a major issue, as we start dinner after they close up and we are unable to return the products the next day... Would you leave rotten meat in your house over night to return it the next day?