Miss Manners: Customers, please knock on the door.
In today's Miss Manners column, advice columnist Judith Martin responds to a shop owner who runs their business from home ...
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Correct way to knock doors leaves people baffled as they say their 'brain won't let them'
There might be a better way to knock on doors – but not everyone is happy about it. Most people lift their arm and hit their knuckles against the door in question – usually one or more times.