"Dudo of St. Quentin records an encounter between a party of Danes and King Charles of the Frankish kingdom. In the presence of the king, the Danes were ordered to show their submission by kissing the foot of the king. The leader of the Danes refused. One of his followers complied. But, rather than kneeling to kiss the foot of King Charles, the Dane stood, grabbed the king's foot, and lifted it up to the level of the Dane's own head, dragging the king out of his seat and onto the floor. With the king held upside-down, the Dane kissed the foot."