Every day we encounter petty annoyances. Often they're nitpicking trifles, of insufficient consequence for victims to feel inspired to form a support group or even write a letter to the editor to voice their concerns. Nonetheless repetitive displays of the same thoughtless behaviour can wear a person down. So in
Shelley Bridgeman: Six types of annoying people

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Annoying things that people do that are bound to give you a headache. Photo / Thinkstock

Inconsiderate backpack wearers
Many backpack wearers are either unconcerned with the comfort of those around them or have a very poor sense of spatial awareness. In close quarters, such as in a queue or on a cramped aircraft, people who do not make allowances for the bulky load attached to their back are downright antisocial. Many times, while in the aisle seat of a domestic aircraft, I've had to dodge a heavy backpack while its owner has turned and sent it where my head was seconds earlier. Backpackers should look before they twirl rather than force fellow passengers to duck and dive dramatically to avoid assault.
People who issue false virus warnings
Before forwarding me and all your other contacts an email headed "VERY, VERY URGENT - PLEASE CIRCULATE" about an email message with an attachment called "BLACK MUSLIM IN THE WHITE HOUSE" which is said to contain a virus that "burns the whole hard disk C of your computer" please establish the veracity of this claim. According to myth-busting website Snopes this is a hoax that has been doing the rounds for four years now. If I could discover this from ten seconds on the internet why couldn't the sender?
People who needlessly press the pedestrian button at traffic lights
I have two things to say to these people. Firstly, if the little red man is already illuminated then there's no need to push the button to cross. The fact that the little man is red means somebody has already pressed the button. Secondly, there is no need to push this button a dozen times. There's no correlation between the number of times pressed and the speed with which the signal to cross will show. In summary: once is sufficient, although not always necessary. Got it?
And, finally, people who click ballpoint pens on and off incessantly
Arrrrgh.
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