The tales often are in pairs, though -- one tells a story about another type in the party, and then the victim tells one right back in revenge. IIRC, the Reeve told a story about two students who spend the night with a miller, and make whoopee with both his daughter and his wife. So the Miller tells a tale about a reeve.
Oh, see, I didn't get that upon my first reading, which was only a couple of years ago and I was just proud of myself for getting through it. I think my favorite was the one where in order to sleep with the guys wife, the wife and paramour convince him that the next deluge is about to happen and he must sleep in a tub at the top of the house. I don't remember much more but it was grand.