At one point one of the medieval European universities (I want to say the University of Paris, but it might've been a different one) required that you give a co

At one point one of the medieval European universities (I want to say the University of Paris, but it might've been a different one) required that you give a course of lectures as a condition of receiving a doctorate. Unfortunately there was a quorum requirement. You had to have a minimum number of listeners in order for it to count. Some doctoral candidates resorted to bribery (offering free booze was a popular tactic), while others sent their friends out in the street to strong-arm people into attending.