It reminds me of working on campus IT, and the sort of person who, at the end of the semester realize there are pages remaining in their "free print" allotment, print out every page completely covered in black ink to waste as much as possible.
I worked at a company that would provide "free pizza" during evenings to encourage people to stay a little later and get more work done. It wasn't long before people would simply grab armfuls of food, entire pizza boxes, and bring them to their cars, ending that little perk quickly.
I have also printed a blank document before to get blank paper, instead of dealing with accessing the paper tray, which may not have been feasible given the circumstances.
