For a while (Judges 9)

“… a woman on the roof dropped a millstone that landed on Abimelech’s head and crushed his skull.”

Gideon’s own son, Abimelech, was an evil, treacherous man who killed seventy of his half-brothers in order to be the ruler of Shechem. When Shechem finally revolted, the town was leveled and most of it’s people were killed. It looked for a while as if Abimelech would win the day and crush the uprising. He undoubtedly would have had not the Lord guided a millstone dropped from a tower by a woman.