EPSILON OMICRON (Oklahoma State) -- Each fall, more than 70,000 people descend on Stillwater, Okl. to attend Oklahoma State University’s homecoming weekend. Despite the occasion, you won’t find ATO cheering on the Cowboys. Instead, they don the opposing school’s colors and taunt the homecoming crowd for their annual EggerATOr event.

“This is one of the best homecoming events in the country,” said Chapter President Braden Wilson, Oklahoma State ’08. “The streets are jammed full of people ... this is a great opportunity to support St. Jude’s.”

The Stillwater Taus build a two-story box platform and encase it with chicken wire. The day before the game, brothers of the Epsilon Omicron chapter enter the makeshift cage and goad Oklahoma State fans into throwing eggs at them. Suddenly, things aren’t so fun for brothers on the other side of the fence.

“It can be painful,” said Andrew Perry, Oklahoma State ’07. “Some people throw really hard, so when the egg hits you it may cut you.”

The chapter charges $1 per egg, and a special rate of $5 for six eggs. All of the proceeds benefit St. Jude Children’s Hospital, and the events draws one of the largest crowds on campus.

“Desmond Mason threw an egg,” said Wilson. Mason is an Oklahoma State alumnus who played for the men’s basketball team and continued on to the NBA.

Even the chapter’s Sweetheart went behind enemy lines.

“The little kids throw pretty hard...they get really close,” said ATO Sweetheart Samantha Vicent.

This year the chapter purchased more than 4,000 eggs. Even with a small arsenal of eggs, the event sold out ... twice. All-in-all, Epsilon Omicron’s EggerATOr raised $3,800 for St. Jude Children’s Research Hospital.

Learn more about the Epsilon Omicron chapter at Oklahoma State by following them on Twitter: @ATOokstate