The staff at the Colorado elementary school said no one could calm 8-year-old Aidan Elliott.
He had just thrown a TV and chairs and was now trying to use a cart to bust through a door to an office where teachers had taken some young students for safety.
They called the police.
The officers found him with a foot-long piece of wood trim with a knife-like point in one hand and a cardboard box in the other.
"Come get me, f-----," he said.
When they couldn't calm him down, one squirted Aidan with pepper spray. He blocked it with the cardboard box.
A second squirt hit the youngster in the side of the head, and down he went, according to an account of the Feb. 22 standoff in a police report first obtained by KUSA-TV.
Aidan and his mother went on national talk shows on Wednesday to say using pepper spray on an unruly 8-year-old was too much.
Police in the Denver suburb of Lakewood and officials at Glennon Heights Elementary in Lakewood say it could've been worse.
"Had the officers chosen to be hands-on with him, the potential for him getting some type of injury and, maybe even officers, would have been much higher," police spokesman Steve Davis said.
"It was the best choice made," he said.
It wasn't the first time officers had been called to pacify Aidan, Davis said. They'd been able to talk him down in two other incidents.
Mandy Elliott said she wished authorities had chosen to talk him down in the latest incident. She also wanted police to get special training in dealing with children. Aidan has since transferred to another school.
When asked about the pepper spray and what he did, Aidan said: "I kind of deserved it."
Aidan started acting up while on the bus to school, the police report said. He began screaming and then continued after breakfast while throwing chairs at his teachers.
"He was being very aggressive, very violent," said Melissa Reeves, the school district spokeswoman.
There were eight students with Aidan in the classroom, Reeves said, and teachers removed them after he became violent. They barricaded themselves in an office, as he tried to bust in, Davis said.
Aidan was swearing and shouting expletives at his teachers and threatening them, Davis said. He taunted police when they arrived.
"I wanted to make something sharp, like if they came out, `cause I was so mad at them," the boy said on NBC's "Today" show. "I was going to try to whack them with it."
After hitting him with the second squirt, officers took Aidan outside for some fresh air to help dissipate the spray. Paramedics were treating his red, irritated face with cool water when his mother arrived.
According to the report, Mandy Elliott asked her son what he did.
When he told her he had been hit with pepper spray, she is quoted as saying, "Well, you probably deserved it."