He quickly hung up, telling the barista who answered "No, just kidding. Wrong number. Goodbye!" Fast Company found the barista and interviewed her about her moment of fame -- only she didn't realize who she was talking to, nor why people have continued to call that store for the past six years asking for 4,000 lattes.
The incident in question occurs roughly five minutes into this clip:With help from Starbucks, Fast Company was able to track down Zhang, a soft-spoken barista who goes by "Hannah." Sincere and sweet, Hannah has been working at the same Starbucks for more than a half-decade. "Honestly, I was shocked," she recalls. "I have never heard somebody order 4,000 lattes to go. I didn't say anything because I was shocked. But my first impression was that he was just being humorous. He sounded like a gentleman."
It isn't the only prank call that Jobs made in his lifetime however -- when Jobs was in high school, he and Steve Wozniak famously tried to call the Pope, with Wozniak pretending to be Henry Kissinger.
Article Link: Steve Jobs' 4,000-Latte Prank Order Lives On at San Francisco Starbucks