Seducers and Simoniacs
a river of shit
hyper rationalization of the sin
Then I thought about the next circle, for the simoniacs. I'd originally thought to leave them out (again, it's hard to distinguish them from the grafters [barrators]), but their circle contains one of the most memorable images from Inferno - people with their feet on fire (not the rest of them). Then I got this idea how to work in some religious charlatans at this point in the journey, so it'll work perfectly!!