A Wisconsin teenager is alive today thanks to his quick-thinking friend.

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Freshman Will Olson was eating lunch with his friends this week when he started to choke on a piece of food. His classmate Ian Brown immediately knew something was wrong, jumped to his feet and began using the Heimlich Maneuver on Olson.

Other students around them continued eating.

After a few thrusts, the food became dislodged and Olson began to breathe again.

"I could've been dead," Olson told WISN. "I could be dead now. I'm thankful. I can't say thank you enough for what he did."

The La Crosse Police Department posted surveillance video of the incident to its Facebook page where it said Brown had learned the life-saving technique when he took a training course with the police department. Brown had participated in the department's Police Explorer program, which exposes teenagers who are interested in pursuing a career in law enforcement the basics of policing, including first aid training, according to KTRK-TV.