There's a subculture around here obsessed with dipping fries in a chocolate shake at the Char-Grill. My girlfriend in high school would go and not order a burger, which otherwise would be a capital offense. I've never understood this, as they make pretty bad shakes, IMO, but there is definitely something to be said for combining salty and sweet, especially chocolate. (Popcorn and Junior Mints -- now that's a combination!)