Yeah, well, I don't want to get screwed over in a trade, either. There are a lot of good cards left on the board that I have my eye on. Probably not as good as Sinkhole, but it's not like that's going to make your deck, anyway. I think, for a pick as high as 15, I actually want you to have to sacrifice something of value to your own deck.
I would be willing to trade down, though. I feel like I need more depth. I'll trade the 14th or 15th pick for multiple round 3 picks. I'll entertain offers from anyone, btw.