21.   If an alert is issued by the Weather service, a user who has the alert system turned on hears an alarm.

22.   Most of the passengers said they never heard an alarm.

23.   None remembered hearing smoke alarms on the night of the fire, and all said they were never advised about fire evacuation procedures during their stay.

24.   The astronauts should be able to hear any alarms that go off in Zarya even if their ears are plugged.

25.   The woman guard heard the alarm but checked only the front entrance, while the thieves escaped through a back door.

26.   The break-in lasted just a few minutes, according to witnesses, who heard the alarm and then saw two men leaving in a van.

27.   The couple said they heard no alarm but were woken by a knock on the door of their cabin.