But those groups are rarely actually fighting each other.
In Albuquerque, though, they are. Physically. In a boxing ring.
Despite strong objections from the city, firefighters and police officers are going ahead with their annual Rumble in Rio, a boxing match to raise money for a charity that gives bikes to kids.
Maybe the winner gets to determine the radio frequency for emergency response broadcasts?
Photo via Flickr, from Blaineo.