had a similar thing happen. One class in college that I was taking had to buy a ridiculously expensive book, and then buy a just as ridiculously expensive one time use online code for some simulation project. after running the simulation project we had to write a big paper and charts and diagrams yada yada. Well i found a teacher's edition of the book online with a sample of the project answers included for waaaaay cheaper. being a poor college kid, obviously bought that instead. Copied the project answers, changed things out here and there, and turned it in. When the prof started passing them back, she gets to me and says something along the lines of it being the best one shes seen, and asks if she can keep it for an example for future students. lol, sure thing chief.