This one's good. I think I originally heard it as something else. Thanks to Packers Pacific booster club for the joke.
http://www.packpacific.com/humor.htmOne foggy night, a Green Bay Packers fan was heading south from Green Bay and a Chicago Bears fan was driving north from Chicago . While crossing a narrow bridge, they hit each other head-on, mangling both cars.
The Packers fan manages to climb out of his car and survey the damage. He looks at his twisted car and says, "Man, I'm lucky to be alive!" Likewise, the Bears fan gets out of his car uninjured, he too feeling fortunate to have survived.
The Bears fan walks over to the Packers fan and says, "Hey, man, I think this is a sign that we should put away our petty differences and live as friends instead of being rivals." The Packers fan thinks for a moment and says, "You know, you're absolutely right! We should be friends. In fact, I'm going to see if something else survived the wreck."
The Packers fan then pops open his trunk and removes a full, undamaged bottle of Jack Daniel's. He says to the Bear fan, "I think this another sign-we should toast to our newfound friendship." The Bear fan agrees and grabs the bottle. After sucking down half of the bottle, the Bears fan hands it back to the Packers fan and says, "Your turn!"
The Packers fan calmly twists the cap back on the bottle, throws the rest of the bottle over the bridge into the river and says, "Nah, I think I'll just wait for the cops to show up."