My candy bar is old

You ever notice on a candy bar that the wrapper says Freshness Guaranteed or something to that effect? Better yet, it wants you to retain the wrapper and any unused product to ask questions or send in for a replacement candy bar. If there is caramel that dripped out of the bar still in the wrapper and a light smear of chocolate next to it does that count as part of the bar? Can I still get my replacement even though in my hunger I snarfed the bar to satiate my squealing stomach?

One of my favorites is the ButterFinger candy bar. Not to eat (well sometimes), but the filling in a ButterFinger quickly coalesces into a hardened mass that you end up breaking off. Rare indeed is the fresh bar that easily crumbles as your teeth sink into the chocolate exterior.

Has anyone ever tried to send back a bad candy bar? What did you get in response? A coupon for a free bar? A replacement? An apology letter for the sub-standard product you attempted to consume from the vending machine? Inquiring minds want to know.