Cheeseballs

Have this sudden hankering for cheeseballs. Don't know why. Not that I'm a huge fan, but I could bite into a whole "big bag" right now. You know, the kind that collapse in your mouth like bubbles but stick to your molars for days. The kind you try picking with toothpicks and won't come off. Speaking of cheeseballs, anyone know why the packs are filled with air? Who the flying fluff is going to get hoodwinked into believing the pack is filled to seal with balls?