This young man was taking a programming class in high school. He noticed a lazy classmate copying the code off his screen during exams.

It was an insider joke, a nod to the common practice of developers who copy and paste code, shared by other users on the site, for use in their own projects.

A defense attorney for a former Goldman Sachs Group Inc programmer accused of stealing the company’s high-frequency trading code told a New York jury on Wednesday that the programmer's actions ...