Please keep in mind that the publics safety is my first concern. I want to help you understand more about our profession. Let me start by answering the simplest part first.
1) Yes, like a breaker panel in a home there is a method of turning off an elevator. Generally the cab interior lights are on a separate breaker.
2) Yes, there could be a malfunction that would cause the elevator to skip a floor or floors. This question would require more information. We would need to know who manufactured it, what year and which model it was to start.
Think of it like the auto industry. All the makes, model and years. There has been many changes over the years...
