In Ray Bradbury's novel "Fahrenheit 451," Montag is ultimately turned in by his fellow fireman, Captain Beatty, after Montag kills him with a flamethrower. Beatty had sensed Montag's growing discontent with the society they lived in and was aware of his hoarded books.
Mildred, Montag's wife, turned in the alarm against Montag for having books.
Captain Beatty turned Montag into a fireman. He recruited Montag and influenced him to embrace the ideology of burning books and suppressing knowledge.
I think it was only 2 people, Mildred and one of her friend
Captain Beatty tells Montag that firefighters were not originally created for burning books, but were in fact established to prevent fights and violence among individuals. This is a lie to deceive Montag about the true purpose of book burning by the government to control ideas and knowledge.
Beatty blamed Montag's neighbor, Professor Faber, for influencing his use of illegal books. Beatty believed that Faber had turned Montag against society and the fire department by encouraging him to read and think critically.
Clarisse is not disturbed or afraid like everyone else is of firemen.
Mildred Montag said this in "Fahrenheit 451." She expresses the sentiment while talking to her husband, Montag, indicating the busy and disconnected nature of their society where interactions and relationships are superficial.
Montag hit a small object that clinked under his foot, which turned out to be a burden to society; a jangling of a hollow, aluminum object.
Yes, the Mechanical Hound in "Fahrenheit 451" was programmed by the firemen to hunt down and capture individuals like Montag who deviated from the prescribed social norms by reading books or questioning authority.
Montag turned off the television and read a poem to Mildred and her friends. This action was seen as very unusual in their society where television was the main form of entertainment and literature was considered obsolete.
The final informant on Montag's home in "Fahrenheit 451" was Captain Beatty, his boss at the fire station. Beatty had grown suspicious of Montag's growing interest in books and ultimately turned him in for possessing illegal literature.
In "Fahrenheit 451," Captain Beatty makes an unspoken deal with Montag to turn a blind eye to his possession of books as long as Montag remains compliant and does not act on his curiosity about literature. Beatty is aware of Montag's growing dissatisfaction with the society's censorship and offers him a chance to conform without facing consequences.