They are at each others throats by day. At night they go out drinking and whoring together and talk about how well their investments and kickbacks are paying off.
No, it was just the country boys shooting guns for New Years. My wife had never heard of such a thing until she met me. As a kid my family always shot guns at midnight New years eve. Is that just a rural MO thing? I guess some people in the city would never do this, but the joggers who shoot each other daily, should be able to relate.