No Albigensian feelings were hurt in the telling of this joke

Mark Hemingway has a good Jesuit joke.  I assume I have dispensation as, even though not Catholic, I attended a Jesuit university.

A young priest asks a wise older priest, "What's the difference between the Jesuit and Dominican Orders?"

The older priest says wearily, "Well, actually they have a lot in common. They were both founded by Spaniards, St. Dominic for the Dominicans, and St. Ignatius of Loyola for the Jesuits. They were also both founded to combat heresy: the Dominicans to fight the Albigensians and the Jesuits to fight the Lutherans."

The younger priest says, "I see. But where do the Jesuit and Dominican Orders really differ?"

The older priest looks at him and says, "Well, have you met any Albigensians lately?"