Then said the king to Ittai the Gittite, Wherefore goest thou also with us? return to thy place, and abide with the king: for thou art a stranger, and also an exile. Whereas thou camest but yesterday, should I this day make thee go up and down with us? Al
The restraining device is apparently called a ‘scavenger’s daughter’ and was invented in the court of King Henry VIII. Rarely used historically, there is one genuine one known to exist that is still in the Tower of London. (xpost from /r/Bondage)