But UNC-CH officials say that they are prepared to deal peacefully with situations that could arise this basketball season and that fans here generally cooperate with them.
"Our students have complied when we ask that they do not go any further," said Maj. Jeff McCracken of University police. "Basically, we just stand on the goal posts and tell people (the goal posts) cannot leave the stadium, and they say, 'OK.'"
The last on-field incident at UNC-CH occurred during the 2001 season, when the 0-3 Tar Heels defeated heavily favored Florida State University. Fans Fans spent about one hour taking down one goal post but did not attempt to remove it from the stadium.
Police at N.C. State University's football victory over FSU on Nov. 23 used pepper spray to control celebrants trying to carry a goal post out of the stadium, said N.C. State Police Sgt. Jon Barnwell.
"We were not trying to stop the celebration or rain on everybody's parade," Barnwell said. "Instead of listening to reason, (some fans) decided to push the envelope, so we had to spray them."
Several other football celebrations this season have provoked forceful police responses. Fans threw turf at state troopers at Ohio State University, threw debris at the opposing team at Washington State University and trampled security guards at the University of California-Berkeley.
Celebrations such as these are unique to college athletics because professional sports officials have cracked down on unruly fans, said UNC sports psychology Professor John Silva. Men who are 14 to 28 years old are the most likely to misbehave at sporting events, and they are plentiful in the college environment.
"You get young males watching an activity that activates them, and many are drinking alcohol that disinhibits them," Silva said. "It happens more often when you are looking at ... sports when there is aggression on the actual field of play."
The loyalty and tradition at many colleges foster the environment for this reaction, Silva said. He added that many of the authorities who would punish fans are fans who don't want to appear unsupportive. "There has been a lot of tolerance from people about it, saying it would be almost unpatriotic to curb the celebration," he said.