The king was about to go off to the crusades so he called in the court jester and gave him the key to the queen’s chastity belt.
“If I am not back in ten years,” he said, “you may use the key.”
The king and his entourage set off. They had just crossed the castle drawbridge, when the jester came running, waving and shouting after them.
“Sire, Sire, thank goodness I managed to catch you in time.
“You’ve given me the wrong key!”