At school, it is important the data you use is appropriate for a school environment. For example, if you are making a game for Yr 9 students, it should be appropriate for this audience and not contain excessive violence. Data in your files should not be inappropriate, which means it should not contain images or documents which are racist or disrespectful to others. The school has also taken measures against this, with students not being allowed to keep .exe files in their H:\ drive.
This appropriateness of data is also relevant on internet forums or public domain. Remember that other users are people too, and the things you say should not cause offence or bully.
