Andrew Sullivan links to a list of odd U.S. sex laws and quotes this one:

It just so happens that I lived on a farm a half mile from Connorsville during the first eight months of my life. I kid you not. Needless to say, I didn’t become a legal expert in these matters during that short time, but I’m nearly certain this law doesn’t exist. Connorsville is an unincorporated village, i.e. it has no mayor or town council to pass laws. The 97 or so residents of Connorsville are subject to the jurisdiction of the town of New Haven. According to my legal counsel back home, New Haven has no ordinances against, um, discharging firearms.