A knight encounters a troll on a bridge. “Do I have to fight you?” Asked the knight.
“No need for a fight if you can pay the toll.”
“I’m in a hurry, troll. What is the price?”
“Promise to keep this bridge safe.”
“Say it and mean it.”
“Fine. I promise to protect this bridge.”
A gust of fog blankets the bridge. As it clears, the troll magically transforms into a beautiful lady. Whereas the knight was turned into a troll.
“Thanks for the rescue ‘o brave knight.” The lady laughed as she ran off.