stupid helmets. Here's a list of other schools that also wear helmets while playing football:
Air Force
Akron
Alabama
Appalachian State
Arizona
Arizona State
Arkansas
Boise State
Bowling Green
Cal
Colorado
Colorado State
Duke
Georgia
Georgia Tech
Harvard
Hawaii
Idaho
Idaho State
Iowa
Iowa State
Kansas
Kansas State
LSU
Mississippi
Missouri
Montana
Memphis
Ohio
Oregon
Oregon State
Purdue
Penn State
Rutgers
USU
Washington
I've heard there's more, but these are the only ones I can think of.