You should call the authorities if you witness a crime.
Grant is watching a movie one night when a barking noise drowns out the sound.
Grant wants speak to his neighbor about his loud dog.
Grant witnesses an intruder entering the neighbor's side window after complaining about the barking, so he quickly calls 911 to report the burglary.
Grant sees a man breaking into the neighbor's house after talking to him, but doesn't call the police.
The neighbor was not harmed and the officers safely apprehended the criminal before he could escape.
The neighbor is knocked unconscious and all of his valuables are stolen.