Ha ha. I once worked on a team where the "sales" people made a "partnership" with a famous company. We paid the famous company for this privilege and were able to advertise that the famous company used our product. We also agreed to do custom work on the product for the famous company for free. As part of the agreement, the "sales" people signed a contract that said that we would pay a huge penalty if we didn't deliver a certain piece of functionality in a certain time frame. After the developers discovered this, the "sales" people were informed that the functionality was impossible (as in it is a generally unsolvable problem).
Interestingly, when it all went bust, the company laid off all the developers and retained the "sales" people in the hope that they could somehow get some revenue flowing in. Not so funny at the time, but pretty hilarious to think back upon now. It has certainly shaped the kind of questions I ask when I interview for positions ;-).