Players find posters up all over the country proclaiming large amounts of cash for agreeing to be part of a "social experiment" on a given day. Players naturally check it out, thinking to either score some quick cash, or just because they can't let a good plot hook float by.

Players all show up on the designated day to find a large number of people milling about, being sorted into a long continueous line that stretches as far as the eye can see. A wizard is paying everyone in large quantities of vaguely bovine chunks of salt (made from Transmute Flesh to Salt) to form a line and being prepared to pass something along. The object to be passed is a large, leather bound book. The book has a time delayed contingency dispel magic prepped on it, and every square inch of the book is covered in explosive runes.

Yea...the evil wizard villian is paying commoners to form a Commoner Railgun to pass the magical equivalent of an ICBM with a time delayed fuse at a neighboring country. The commoners don't really know whats going on, all they care about is free salt! Wizo has spent the last month making the book, doing the maths, and preparing for his dastardly scheme to come to fruition. Its too silly not to work, and if the players have ever heard of any of these tricks, they'll probably fall on the floor laughing.

If the players figure out and try to stop this from occuring, the wizard instantly crafts a HUGE mound of quarterstaves and clubs to obscure himself before teleporting out.