A student and his parents have filed suit against the Gilbert Unified School District in connection with an apparent prank that went awry.
Ryan Deppert, a Mesquite High School student, accuses the district of negligence and gross negligence for not providing adult supervision on the day Deppert was injured.
"Obviously, if there had been an adult there this wouldn't have gone as far as it did," said Colin Campbell, Deppert's attorney.
According to the lawsuit filed in Maricopa County Superior Court on April 3, Deppert fell and fractured his skull after two other students bound his arms and legs with bubble wrap.
Deppert was at a 6 p.m. marching band practice on July 31 when the students asked him to follow them to the auditorium, where they wrapped him.
Then they carried him to the band room, where they placed him upright.
Deppert tried to make his way to another room when he lost his balance "and then fell sharply, hitting his head."
The blow knocked him out and when he came to he was sick to his stomach, lethargic and confused.
He was taken to Banner Children's Medical Center.
Campbell said the event took place over a 30-minute span, and even though the band instructor was on campus, he was in an office away from the kids.
The lawsuit alleges the injuries "resulted in a loss of learning capacity."
"He's had some issues since the incident," Campbell said.
A school district official did not immediately return a call seeking comment on Friday.