What did Gideon do to the men of Succoth?

He tore their flesh with thorns and briars.

(For refusing to give him bread since he hadn't capturing Zebah and Zalmunna.)
And Gideon said,Therefore when the LORD hath delivered Zebah and Zalmunna into mine hand, then I will tear your flesh with the thorns of the wilderness and with briers. ...

And he came unto the men of Succoth, and said, Behold Zebah and Zalmunna, with whom ye did upbraid me, saying, Are the hands of Zebah and Zalmunna now in thine hand, that we should give bread unto thy men that are weary? And he took the elders of the city, and thorns of the wilderness and briers, and with them he taught the men of Succoth. Judges 8:7-16