Think how horrible it would be to complete your term paper at 4 am and find out that your computer has a virus and you just lost your entire document.  Or perhaps you submit your final paper, which is worth 50 percent of your grade, and you then head off to Colorado for winter break.  You return to find that you failed the course, and you frantically check your email to find out what happened. A message from your professor informs you that your document was corrupt and couldn't be opened and that you had 24 hours to resend the file, which you missed because you were skiing down the slopes. 

Have you ever experienced having a file corrupted?  If so, what could you have done to recover from the situation?

Do you think your instructor ever receives corrupted files?

How did the file become corrupted?

Do you think your instructor would be suspicious if you submitted a corrupted file?