Peggy Johnson onstage at Business Insider's IGNITION conference.
Thanks to that conversation she discovered engineering and has gone on to become a major force in the tech industry.
Peggy Johnson is Microsoft's executive vice president of business development, the company's top dealmaker.
She was one of Satya Nadella's first new hires when he was promoted t0 CEO in 2014.
Plus she manages Microsoft's VC fund Microsoft Ventures, which in three years has backed about three dozen startups.
And none of it would have happened if not for a fluke errand she ran in college, she revealed on a post on LinkedIn.