Perceval, hearing the threat, turned his horse’s head about; and with thrusts of his spurs of steel he came galloping at Kay – who wasn’t riding slowly himself. Both knights meant business and clashed whole-heartedly. Kay struck with all his force, so hard that his lance smashed and shattered like bark; nor did Perceval hold back: he hit Kay just above the boss and sent him crashing on a rock, dislocating his shoulder and breaking his right arm between elbow and armpit like a stick of kindling – just as the fool had often foretold! The fool’s prediction had come true! Kay passed out with the pain, while his horse went prancing back to camp.

Perceval, the Story of the Grail