This might be the most overqualified restaurant employee ever!

A woman named Alina Benge works as a waitress in Winnetka, Illinois, just north of Chicago. And the restaurant where she works needed a busboy at the last minute on St. Patrick's Day. So she asked her dad, Dr. Bill Benge, to fill in.

He's a Harvard-trained cardiologist who recently retired, so apparently he had nothing better to do. It's a good thing he said yes, because five minutes after clocking in, he saved a woman's life.

A female customer started choking. So Bill stepped in, did the Heimlich maneuver, and it worked. Someone called 911, and paramedics checked her out. She was fine, and even finished her meal.

When Bill originally agreed to fill in as a busboy, Alina joked that he could also help out if there was a medical emergency. So it's crazy it actually happened.

Bill says he hopes the story inspires other people to learn the Heimlich maneuver. Because you don't need to be a doctor to do it.

Read more at WGN9.