Morgan: I can solve your problem with my magic.
Mordred: At what price?
Morgan: I want to be court wizard and get funding for my magical research. When I run out of swamp toad bile, I want to be able to pay enthusiastic youths to get it for me.
Mordred: Seems like a bargain.
* Fifty years later *
Alice: Which swamp is it again?
Bob: Let me check the map.
* suddenly, an armed band of thugs leaps out from the bush *
Thug: Stand and deliver, villains!
Alice: Villains? Nay! We are but simple travelers who seek the swamp that lays beyond these woods.