SimplexGrinnell. Resetting a fire alarm pull station after it has been operated normally requires building personnel or emergency responders to open the station using a key, which often is either a hex key or a more traditional key. Opening the station causes the handle to go back to its original position, allowing the alarm to be reset from the fire alarm control panel after the station has been closed. In some places, particularly at college dormitories and schools, students set off fire alarms as a prank or simply because they want to (out of anger, curiosity, revenge, or to postpone a test). These false alarms can convey risk to alarm fatigue if they occur repeatedly, causing occupants to dismiss the importance of alarms or ignore them completely. In areas where false alarms are a recurring problem, pull stations may be covered with a clear plastic cover (sold under the "Stopper" trade name) that will cause people to notice the person by sounding an alarm when tinkered with or opened, creating a focus on the fire alarm. The plastic covers may also be used to help prevent accidental pulls caused by bumping a pull station or accidental pulls by small children. Some covers lack internal alarms and are just used to help prevent bumping the pull station. Because of these and other issues, intentionally setting off a fire alarm when there is no fire or other emergency is illegal in most jurisdictions. Manual call points In Europe, Australia, New Zealand and Asia, pull stations are generally not used; instead of a manual call point is used, which is usually referred to as an MCP, call point, break-glass point, or Fire Point within the fire protection industry and as a "transmitter" in Japan. They are used to allow building occupants to signal that a fire or other emergency exists within the building. When activated they will raise a plastic flag out of the top to tell which alarm was activated. They are usually connected to a central fire alarm panel which is in turn connected to an alarm system in the building, and often to a local fire brigade dispatcher as well. The first modern MCP arrived in Europe in 1972 and was developed by KAC. Manual call points are used to initiate an alarm signal and operate using a simple button press or when glass is broken revealing a button. They