Photos: Crazy football fans

Chicago Bears fans go retro with their best Mike Ditka (circa 1986) impression during a game against the Tennessee Titans on Nov. 4.   (Brian Cassella/Chicago Tribune)

New Orleans Saints  (Tom Hauck/Getty)

Miami Hurricanes  (Joel Auerbach/Getty)

Oakland Raiders  (Stephen Dunn/Getty)

Chicago Bears  (Jim Young/Reuters)

Miami Dolphins  (Al Messerschmidt/Getty)

Jacksonville Jaguars  (Sam Greenwood/Getty)

Miami Hurricanes  (Mike Ehrmann/Getty)

Tampa Bay Buccaneers  (Grant Halverson/Getty)

St. Louis Rams  (Scott Boehm/Getty)

Washington Redskins  (Scott Cunningham/Getty)

New Orleans Saints  (Wesley Hitt/Getty)

Cincinnati Bengals  (Larry French/Getty)

Florida State University Seminoles  (Al Messerschmidt/Getty)

Houston Cougars  (Thomas B. Shea/Getty)

Virginia Tech Hokies  (Scott Cunningham/Getty)

New England Patriots  (Matthew J. Lee/Getty)

Denver Broncos  (Doug Pensinger/Getty)

Green Bay Packers  (Joe Robbins/Getty)

Oakland Raiders  (Brian Bahr/Getty)

New York Jets  (Jim McIsaac/Getty)

Cincinnati Bengals  (Joe Robbins/Getty)

Oakland Raiders  (Brian Bahr/Getty)

San Francisco 49ers  (Rob Carr/Getty)

Baltimore Ravens  (Rob Carr/Getty)

New Orleans Saints  (Wesley Hitt/Getty)

Virginia Tech Hokies  (Geoff Burke/Getty)

Oakland Raiders  (Mike Blake/Reuters)

Denver Broncos  (Doug Pensinger/Getty)

Georgia Tech Yellow Jackets  (Joe Robbins/Getty)

Boise State Broncos  (Ethan Miller/Getty)

Atlanta Falcons  (Scott Cunningham/Getty)

Virginia Cavaliers  (Geoff Burke/Getty)

Miami Dolphins  (Mike Ehrmann/Getty)

Arkansas Razorbacks  (Wesley Hitt/Getty)

Minnesota Vikings  (Kevin C. Cox/Getty)

Cleveland Browns  (Matt Sullivan/Getty)

Oakland Raiders  (Paul Hackett/Reuters)

New York Jets  (Ray Stubblebine/Reuters)

Georgia Bulldogs  (Joe Robbins/Getty)

Cleveland Browns  (Matt Sullivan/Getty)

Oakland Raiders  (Stephen Dunn/Getty)

Detroit Lions  (Rebecca Coo/Reuters)

Houston Texans  (Sam Greenwood/Getty)

Philadelphia Eagles  (Scott Cunningham/Getty)

Washington Redskins  (Scott Cunningham/Getty)

Houston Cougars  (Thomas B. Shea/Getty)

Buffalo Bills  (Rick Stewart/Getty)

Indianapolis Colts  (Joe Robbins/Getty)

Boise State Broncos  (Ethan Miller/Getty)

Kansas City Chiefs  (Jamie Squire/Getty)

Kansas City Chiefs  (Jamie Squire/Getty)

Miami Hurricanes  (Joel Auerbach/Getty)

San Diego Chargers  (Tom Hauck/Getty)

Philadelpia Eagles  (Rich Schultz/Getty)

Tennessee Titans  (Joe Robbins/Getty)

Terrible costume  (Photo by Karl Walter/Getty Images)

Playing football against Rex Ryan’s Jets  (Photo by Jonathan Daniel/Getty Images)

Ravens flock  (Photo by Larry French/Getty Images)

Indy vision  (Photo by Andy Lyons/Getty Images)

Eagle-man  (Photo by Chris Trotman/Getty Images)

Eagle-man  (Photo by Chris Trotman/Getty Images)

El bandito  (Photo by Otto Greule Jr/Getty Images)

Matty ice ice baby  (Photo by Scott Halleran/Getty Images)

Little boy blueberry  (Photo by Andy Lyons/Getty Images)

Zebra stripes  (Photo by Donald Miralle/Getty Images)

Gorilla tactics  (Photo by Sam Greenwood/Getty Images)

Blue Fu Manchu  (Photo by Kevork Djansezian/Getty Images)

Jets head  (Photo by Jeff Zelevansky/Getty Images)

Straight pimpin’  (Photo by Larry French/Getty Images)

Bear hair  (Photo by Stephen Dunn/Getty Images)

Little baby bear  (Photo by Jonathan Daniel/Getty Images)

Saint face  (Photo by Jonathan Ferrey/Getty Images)

Pat head  (Photo by Harry How/Getty Images)

Ring leaders  (Photo by Larry French/Getty Images)

Why so serious?  (Photo by Matthew Sharpe/Getty Images)

Mauling the opponents  (Photo by Scott Halleran/Getty Images)

Ravenous  (Photo by Larry French/Getty Images))

Impaled by hair  (Photo by Otto Greule Jr/Getty Images)

Cheesy  (Photo by Jim Rogash/Getty Images)

Sound the horns  (Photo by Doug Pensinger/Getty Images)

Old man at Arrowhead  (Photo by Jamie Squire/Getty Images)

Colts camouflage  (Photo by Andy Lyons/Getty Images)

Helmet to helmet  (Photo by Streeter Lecka/Getty Images)

Helmet to helmet  (Photo by Streeter Lecka/Getty Images)

Tomahawk chop  (Photo by Larry French/Getty Images)

Seattle flock  (Photo by Otto Greule Jr/Getty Images)

Phantom of Qwest Field  (Photo by Otto Greule Jr/Getty Images)

Swallow the whistle  (Photo by Otto Greule Jr/Getty Images)

Spike  (Photo by Sam Greenwood/Getty Images)

Silver and black bandit  (Photo by Sam Greenwood/Getty Images)

Super 9er  (Photo by Christian Petersen/Getty Images)

Helmet head  (Photo by Scott Boehm/Getty Images)