Where could a phone jammer be used?

Cell phones can be disruptive in many situations. Examples of places where blocking the phone signal might be considered:

• Public transport: trains, busses, subway, etc.);
• Restaurants;
• Theatres, concert halls, opera houses, etc.;
• Public libraries;
• Lecture rooms and schools;
• Museums;
• Churches, mosques, shrines and other places of worship;
• Country clubs;
• Sporting events;
• TV and radio stations, recording studios, etc.