post from antilag by Balistc should be useful in future
"Fast food outlets always forget food in orders. Because of this, I check before leaving the drive-through or the counter.
If they forget and my check doesn't uncover a mistake (sometimes you can miss things, especially if the bag is overfull), they receive a barrage of abuse via phone and demands for free meals, which I normally receive and redeem asap.
Whether the letter is real or not, do the above and you can't really go wrong."
