BloodyHellSausage
Troubadour
I think every writer comes up with ideas that they later decide to drop. If they're not too embarrassing, share ideas that you decided to throw in the reject pile.
I don't think I have any rejected ideas. I have plenty on the backburner--so many that I've had to buy several more backburners--but none that I reject.
It's not so much that dragons didn't work. They just didn't serve any function.