Hence it would appear that the new system failed but service continued due to the operators keeping both old and new systems on-line during a breakin period. One reason is that I wanted to illustrate the point that developers of technologically based systems must anticipate all sorts of events that to the ordinary mortal would seem preposterous. Having a monkey loose in the cockpit is just one example of an event that few if any people had ever thought of before. I might have added something about monkeys typing randomly and sooner or later typing Shakespeare. The probability that a monkey might do something eventful to the plane controls is of course nonzero.
Macaques are particularly inquisitive and playful.
I assumed I could use the one I had requested on the application form, but it didn't work. The teller read off my card number to the person on the phone and they told her my number, which she wrote on the back of a deposit slip and gave to me. I went back to the bank, where they went through the same procedure of calling the central branch. I thought they had to give you a new card to change your PIN, or at least re-encode the magnetic stripe. The folklore has always been that computers, especially in the form of robots, would one day render blue collar workers obsolete.