Let's suppose the following hypothetical situation: A number of graduate students (say, seven) share an office. The overhead light has a motion sensor. When people are working or reading at their desks, they're not moving around enough and the light shuts off after about 15 minutes.
One member of the class decides to rewire the light (the junction-box is easily accessible). He or she is extremely proud of him/herself for this unusual feat of engineering.
What do you say you're going to do at the end of the year for next year's class? Your could be an asshole, and proclaim that you are going to re-wire the sensor "to give the next class a challenge like we had" or do you shut the fuck up and leave the light the new way that makes everyone happier?