A Rouse High School student allegedly cut a teacher with an X-ACTO knife and now faces a charge of aggravated assault with a deadly weapon against a public servant.

According to Leander Police, an art teacher saw Ryland Alexander Gonzalez, 17, allegedly stabbing a Styrofoam dinosaur in the classroom. According to the arrest warrant, the teacher allegedly confronted Gonzalez to hand her the knife.

The arrest warrant states Gonzalez turned to face the teacher and she reached to grab the knife. The teacher told police that Gonzalez yanked the knife away and it slashed her hand three times. The teacher received 10 stitches in her middle finger at a local hospital.

Gonzalez told police that he was just “playing around” when he pulled the knife back from the teacher and that she may have sliced her finger as he pulled away. Police said the wounds on the teachers fingers were not consistent to what Gonzalez described and were actually deep puncture wounds.

He’s currently being held on a $15,000 bond in the Williamson County Jail.