Flat can be horizontal, Bee-dub, but it doesn't have to be. A wall is flat, yet it is also vertical. A leaning board is flat, yet it is leaning between the horizontal and vertical. Now that I have you wriggling in the grip of irrefutable logic, I think it is time to offer you a chance to purchase a way out of the humiliating spot you are in. ;-) I will accept unmarked bills in denominations over $20 to allow you to slink away without further embarrassment...