There was a corruption scandal in Australia where government employees were recieving sizable kickbacks for ordering 40 years worth of toner at 3 times the retail price
<a href="http://www.itnews.com.au/News/260705,vic-govt-stung-by-print-toner-scandal.aspx" rel="nofollow">http://www.itnews.com.au/News/260705,vic-govt-stung-by-print...</a>
Probably about 2 days of overcharging of clients by the firm as a whole, but he's blue collar, so off to jail with him. Which about sums it all up, really.
All I can think is if this guy wasn't convicted: "Please tell us about the time you, most successfully hacked some (non-computer) system to your advantage."