A mechanical engineer, an electrical engineer and a computer software engineer are riding in an old Fiat 124 when the Italian car suddenly coughs, backfires and breaks down completely. "It's probably a valve or a piston problem" offers the mechanical engineer. " Nonsense" says the electrical engineer, "it's most probably a spark plug or the ignition." At which the software engineer declares "I know. Let's all get out of the car and get back in again!"