Comment by rhet0rica

There is a time and place for everything—and you should not assume a business environment is the only possible setting in which colleagues might pass by unattended workstations.

Ideally the prank is pulled in a high-trust, low-stakes environment like a college campus or high school computer lab, before corporate policies are part of one's life.

It is also a rich tradition, from the days of yore, before robust security practices became standard:

• http://catb.org/jargon/html/B/baggy-pantsing.html

• http://catb.org/jargon/html/D/derf.html

• https://www.multicians.org/cookie.html

I would much rather my colleagues be taught this lesson (even if just through a verbal reprimand) than work with someone who is allowed to remain ignorant of the risks of their behaviour.