A Granger High student who had been annoying other students with a cap gun Monday found the joke was over when he pulled the toy on a West Valley assistant police chief.

Assistant Chief Steve Shreeve drove a marked police car into the high school parking lot about noon Monday as a group of four students were staging a mock machine gun attack by pointing their fingers at him. But when one of the students pulled the silver cap gun, Shreeve thought he was in big trouble."All I saw was a silver barrel pointed right at my face through the windshield," 15 to 20 feet away, Shreeve said. Strapped into a seat belt and unable to get to his own gun, "My first instinct was to run over him. But he was standing right next to three kids," Shreeve said. "It was kind of a helpless feeling."

"I didn't realize it was a toy gun until I grabbed it out of the kid's hand," he said. "One of the principals came out and said `this kid's been causing trouble with that toy gun all day long, pointing it at other students.' "

The student was booked into detention for investigation of assaulting a police officer. He was also expelled from school, Shreeve said.