A letter sent to parents of Wylie High School students has raised concerns. Administrators are warning them about what some students call "class wars."

In the past, "class wars" referred to a homecoming float building competition. The administration wanted to make it clear to parents that the competition no longer exists and students who say they are participating in "class wars" are not participating in the previously school sponsored event.

"Some students have participated in what they call "Class Wars." Groups of students spend the night together on a Thursday night before Homecoming and in some instances, go out and participate in potentially dangerous activities," the letter stated. "We want to make it very clear that this is not a school sponsored or supported event."

The letter also stated the Abilene Police Department will be patrolling the Wylie area Thursday night.

"We understand that young people take an opportunity during pre-homecoming or homecoming time to pull off what people would typically refer to as harmless, preplanned pranks," Officer George Spindler said.

Spindler said those pranks can sometimes get out of hand.

"There's a difference between criminal behavior and harmless fun--so there's consequences of the actions," he said.

Psychotherapist Marc Orner said students need to be wary of something called groupthink.

"When you're in a group, you feel that you can do so many more things than you would do as an individual because 'A,' you feel that it's safer or 'B,' you don't worry about individual responsibility," Dr. Orner said. "And then the kids don't really think smart."

Wylie's homecoming pep rally is Friday at 1:20 p.m. The football game starts at 7:20 p.m.