Stories abound of clients of these banks desperately knocking on the doors of domestic lenders.
Then they engaged in pranks they described as "childish" and "stupid", such as knocking on the doors of other athletes and making phone calls.
On Saturday, Mr Maliki appeared to blame the conflict in Syria for the surge in sectarianism as he warned of strife "knocking on the doors of everyone".
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Klaus Holse Andersen, Microsoft vice president for Western Europe, says a year ago, Microsoft had to go around knocking on the doors of small businesses to sell its Web-based product.
"Strife is knocking on the doors of everyone, and no-one will survive if it enters, because there is a wind behind it, and money, and plans, " he added, without giving details.
What are the most effective ways to get people to the polls beyond the traditional knocking on doors and working the phone banks?
The tasks ranged from registering voters to knocking on doors in the blazing south Florida sun.
Armed with a special smartphone app, more than 300 teams and individuals spent eight weeks last winter knocking on doors throughout the city.
You all are doing the hard work, knocking on those doors, registering voters -- (applause) -- giving people the information they need about the issues they care about.
As a member of the House, he doesn't have major name recognition across the state, and he is going to have to spend lots of times knocking on doors if he is to become the junior senator from Florida and the only African-American in the U.S. Senate next year.
After three weeks on the winding back roads of Puerto Rico, politely knocking on people's doors to ask if they could root around on their land for frogs, the researchers were relieved to find plentiful specimens.
This resulted in Patty again going up and down the street, knocking on doors, ranting.
"I do not want officers knocking on doors at any time of the year, but especially over Christmas and the New Year to tell families that a loved one has been killed on the roads, because someone has decided to drive after drinking, " he said.
In the 2008 election, I was knocking on doors, sending emails and donating money.
One very cold and snowy January day in Toronto during the 2006 Federal election I was knocking on doors with two loyal hard working volunteers.
In every test so far of activist opinion, the small minority which does the work of stuffing envelopes and knocking on doors has backed Mr Duncan Smith.
They also provide a barrier between the affluent and beggars, junk collectors, basket sellers, fishmongers and job seekers that trawl up and down the streets daily ringing bells and knocking on doors looking for handouts, some on foot and some on horse cart.
And when I got tired, I would think of all the folks out there making calls, knocking on doors in all kinds of weather.
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Unemployment benefits, again, puts money in the pockets of folks who are out there knocking on doors trying to find a job every day.
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It involves direct contact with the customer so it ranges from selling in a car showroom to knocking on doors or holding marketing parties.
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In the past this was done expensively by going out to find them, knocking on doors, cold calling and so on.
Modeled on Facebook, the tool connects all levels of staff to the information they are gathering as they work on tasks like signing up volunteers, knocking on doors, identifying likely voters and dealing with problems.
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Instead they will be using the local media to contact people in an emergency - and, if necessary, going out and knocking on doors.
In the snow-packed San Bernardino Mountains, officers trudged through fresh snow as they searched homes, knocking on doors and peeking in windows, for Dorner.
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