Lancelot, the chief knight of King Arthur, wanted to spend some time with Queen Guinevere. He couldn't, however, get her away from Arthur, so he calls Merlin the wizard to help him.

"I want to be with the Queen, help me"

So Merlin pours some itchy powder in her underwear. Soon, the Queen starts to feel the effect. Arthur, desperate, calls Merlin to advise him on what to do.

"Your majesty, this is an enchantment which only the saliva of noble knight Lancelot can cure. He must apply it to the Queen for three hours"

The King concedes, and Lancelot has his wish granted. The next day, Merlin goes to Lancelot:

"I've kept my part. Pay me"

"What? I won't pay you for only three hours!"

This angers Merlin, who leaves, then puts itchy powder on the King's boxers. Arthur, in pain, calls out:

"Lancelot!"