An Augustinian, a Franciscan, and a Jesuit all die and get to heaven. Jesus asks each one, "If you could go back, what would you change?"
The Augustinian ponders a while and says, "There's so much sin in the world. If I went back, I'd try and stop people from sinning so much."
The Franciscan thinks a bit and says, "There's so much poverty in the world. If I went back, I'd try and get people to share more of their wealth with the poor."
The Jesuit looks at Jesus and quickly replies, "If I went back, I'd change my doctor."