As if there aren't enough good reasons to avoid processed meats in a grocery store -- consider that spray-on virus that allegedly keeps them "safe" -- Smart Money has compiled a list of the top 10 things your butcher won't tell you.

This sampling from the list below ought to erase any doubts about the non-safety of most meats you see at the grocery store.

• Most meat processors inject their products with salt, and lots of it.
• Cleanliness in your grocery store's meat department isn't automatic.
• Much of the ground beef used to make hamburgers could come from anywhere, because it's extracted using an unappealing process called advanced meat recovery.
• Many butchers you see working at grocery stores don't know much at all about the meats they're selling or how to prepare them properly.
• Grocery store are often case-ready, meaning they come prepackaged and ready for sale before they arrive.

The overriding theme behind this list: Where your meat ultimately comes from and how it's cooked makes all the difference in the world to your health. Before you take your next bite of commercial steak or chicken, consider all the problems that come with them.