It may be a lifeguard's job to keep a watchful eye over the lives of swimmers, but this teen wasn't expecting to save a life within minutes of being put on the job.

15-year-old Jack Viglianco had just started his first shift as a lifeguard at the Charles A. Foster pool in Lakewood, Ohio last Thursday when – after only being on the clock for 20 minutes – he heard a cry for help.

As he splashed around in desperation, Jack leapt into action, jumping into the pool and helping the boy to safety.

And just like that, the teen was a hero.

"I was realizing that I just saved a kid's life," Jack told WJW. "And that is something not many other people can say. Nothing my friends have ever said."

According to pool workers, lifeguards are a hugely necessary part of the facility; during last summer alone, there were over 42 incidents of people starting to drown. All were saved thanks to the lifeguards on duty.

(WATCH the video below)

Guard Your Friends From Negativity: Click To Share