A local store is out of all energy drinks except 4 trays of sticky sugar-free ones, and this immediately made me suspicious and yep, the best-before date on the bottom of the cans is unreadable, meaning they're probably very old cans that have faded.

They 100% just didn't get a shipment and went "well shit, quick, find those old trays of sticky cans in storage that nobody wants to buy so we have *something* on the shelves"