Engineers–those on trains–in the 1800s got a good start in the art of hacking. This is from The Story of American Railroads, a thoroughly well-written and entertaining book by Stewart H. Holbrook written in the 1940s that provides many quotable passages:
Although neither the Santa Fe [railroad] or most of the other roads were in a hurry to adopt new inventions, the Santa Fe held in high esteem a gadget known as a Dutch clock. This device, perhaps the most unpopular one with railroad men of the day, was set up in the caboose and it noted and recorded on a tape the speed at which the train traveled. The rule was that freights should maintain a speed of eighteen miles an hour, no more, no less. The Dutch clock soon brought reprimands to all freight conductors who tried to make up time for the breakdowns of equipment that were forever happening.
After considerable discussion of the Dutch clock, the boys figured out a method of handling the menace. On the first sidetrack out of the terminal, the crew would uncouple the caboose, then uncouple the engine, bring it back to the rear on the main line, set it in behind the caboose, then use it to slam the caboose into the standing train at a speed of exactly 18 miles an hour. This, it had been discovered, so affected the Dutch clock’s insides that thereafter it continued to clock 18 miles an hour regardless of the speed developed. This fixing the Dutch clock was considered fine sport, and always left the train crew with a sense of immoderate satisfaction.