The fortune teller lost his sickle.

This idiom is "suspicious of neighbors and stealing axes"

Once upon a time, someone lost an axe. He suspected that his neighbor's son had stolen it. Look at this man. He walks like a thief stealing an axe. Looks like a thief stealing an axe; Words are more like axe thieves, and everything looks like axe thieves. Soon he found the axe, and the next day he saw his neighbor's son and thought he looked like an axe thief.