Regarding bringing knives to gunfights. Don't do it. Additionally, if they put one of your guys in the hospital, you should put one of their guys in the morgue. That's the Chicago Way, and I really think it could work for us.
But don't be confrontational. It looks tacky. You're above the fray. You're not playing games. You're just taking care of the nation's business. Children will be children, but adults should still be adults. Act like one.