But it's not easy to reassure a child when parents are afraid themselves of the knock on the door with bad news.
Agents visited them, and made enquiries, but the family heard nothing more from the agency until this week, when they got the fateful knock on the door.
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"The first incident was when the big, wooden cross, wrapped in ham, fell into the house after a knock at the door, " said Mr Alam.
But about 16:00 BST, the couple heard a knock at the door and were greeted by family friends who ran the construction firm and two policemen.
Just then Dr. Blork entered the room, giving the barest hint of a knock on the door before he barged in.
But she remains frightened about answering the phone or dealing with a knock on the door.
We had just begun the meal when there was a knock at the door.
Fortunately for the British, his Anglophilia survived the rebuff he received as a young man when his admiration for William Pitt the Elder had led him to knock on the door of Pitt's house in London, by then the home of the Royal Institute of International Affairs.
In a surprising 8-1 decision, the Supreme Court has ruled that police can knock down the door to your home and enter if they hear noises that lead them to believe that evidence is being destroyed.
As he was answering the last few letters, he heard a hesitant knock at the door.
And two days after the attack, Mr. Sharma, the gym assistant, was awakened from a nap by a knock at the door, his mother said.
The blinds were shut, and a dog barked when there was a knock at the door.
Mr Demirsay, known locally as Sharif, was stabbed after answering a knock at the door.
Trays of cold cuts and cheese seem to arrive with every knock of the door.
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They knock on the door and ask the partyers to make less noise, and then leave.
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She found out about what had happened when she had "a knock on the door from the police".
And IF you should go in, should you knock on the door?
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One February day in the mid-1990s, Mr. Tombari and his wife, then living in California, got a knock on the door from a friend.
Now committee member and Labour MP Louise Ellman has warned Lord Birt that he could receive "a knock on the door" if he fails to give evidence.
Have your aging loved ones be suspicious of anyone who solicits them, by phone, mail or in person with a knock at the door, suggesting that they are from Medicare.
The 22-year-old answered a knock to the front door of her home in Third Avenue in Luton at 13:10 GMT on Thursday.
It is possible that the first indication of a criminal prosecution might be a knock at the front door during breakfast.
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Thus transformed, she will knock on the front door and sip from a glass of wine traditionally set aside for the Biblical prophet.
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They left just as a thundering knock landed on the front door and reverberated through the apartment.
One day in mid-December, there was a knock at the kitchen-house door and he found Chance Poxley standing in the tall dead grass, wearing a small tweed fedora, shading his eyes with one hand.
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