1. Add food wrappers to files.
It’s as easy as it sounds. Add food wrappers to individual files randomly, or to the files of a particular target. Active files have the best chance of being discovered, but also pose the most risk, especially when stored in a desk. Eye catching wrappers, such as those used for confections and chocolate bars work best.
Leave some food in the wrappers if you wish to help the local insect population infest the office. Just think of it as doing your part in assisting your fellow Earth species to thrive. Insects may not be people, but they have needs too.
The best results for this prank are achieved if the company has random file audits from outside sources, such as funders. It is hard to take an organization seriously, when their staff members can not filter literal garbage out of the filing system.