I've recently been reading Jack Vance's Dying Earth, and I love the various tricks the characters use or are victims of. I'd like to see some similar ideas, either taken from Vance or made up, for use in D&D- usually by minor villains. Here are some ideas:
The owner of a stable sells horses which (unknown to the buyer) are trained to go a certain distance from the stable, then throw their riders and gallop back. The owner makes money both from selling the same animals repeatedly, and from keeping whatever is in the saddlebags.
A shop is selling cheap "dragon scales" to wizards. However, most of the time, spells using these scales as components do not work. The party find out that the scales in question actually come from kobolds. The owner of the shop pledges to mend his ways, and hires the party to hunt a real dragon for him...
The owner of a stable sells horses which (unknown to the buyer) are trained to go a certain distance from the stable, then throw their riders and gallop back. The owner makes money both from selling the same animals repeatedly, and from keeping whatever is in the saddlebags.
A shop is selling cheap "dragon scales" to wizards. However, most of the time, spells using these scales as components do not work. The party find out that the scales in question actually come from kobolds. The owner of the shop pledges to mend his ways, and hires the party to hunt a real dragon for him...