It might be 8 degrees, but this guy still decided not to wear a shirt. (Twitter)

It's a cold Monday night in Chicago, at least to everyone except for this guy, who's taking Mike Ditka's jersey retirement ceremony seriously.

Despite an official game time temperature of 8 degrees, this guy decided to not wear a shirt or a coat or a sweater or a sweatshirt or a vest or a windbreaker or anything that might make him warmer, Instead, this Bears fan decided to wear a Santa Claus hat and some body paint.

If you can't read the body paint, it pays homage to Ditka's No. 89 that will be retired at halftime.

This guy might not be cold, but the Cowboys probably are. The 8 degree temperature at kickoff marks the coldest regular season game in Cowboys history, according to ESPN.com. The previous coldest game in Dallas history came in December 1963 at St. Louis when the kickoff temperature was 16 degrees. Including the postseason, the coldest game in Cowboys history came in the famous 1967 Ice Bowl. The kickoff temperature for that game was minus-13 degrees.

(Wink of the CBS Eye to Aaron Kirn)
Topics: Chicago Bears, Dallas Cowboys, NFL
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http://www.cbssports.com/nfl/eye-on-football/24370546/photo-bears-fan-with-no-shirt-in-8-degree-weather