Many people get into their projects with their own experiences and skills. Much of the time they are tasked with upgrading legacy systems. Sometimes they don't even have the opportunity to get trained by the previous developers on how their code works or why they were coded the way they were.
Most pranks will simply make you look immature or make you a new enemy. However, there are some pranks that require some planning and preparation that can really impress people. Here's one prank that could make you famous in the office and the victim look like a fool.