At what point does the arcade just kick you out? I can't imagine them seeing you continuously tamper with their equipment to circumvent paying and think, "the best way to handle this is to keep modifying our machines."
And the technicians "improving" the machines -- maybe they had a good time too, I'm wondering. @TowerTall and friends made their job more interesting / fun?
In fact, that could be why some of the machines weren't better protected against that stuff in the first place, right?