In no particular order.
Sitting next to you on the train before they have bothered to walk down the aisle to find another seat.
Horribly noisy, messy eating habits. Coughing or sneezing without a hand over their mouth or a tissue. Smelly people; either down to body odour or too much scent.
Prolonging a boring training course by asking ridiculous questions, thinking everyone else will be impressed, when all we want to do is go home.
Repeating ''you know what I mean'', ''you know'', ''to be honest'', ''literally'', "there"s nothing worse'', ''if you ask me'', ''like I say'', or other pointless phrases all the time. Finishing off your sentences for you before you've actually finished.
Having useless cheap personalised number plates where the numbers are made to look like letters. Like we care what your name is. Pointless car stickers like ''little princess on board'' or ''mum's taxi'', or ''show dogs in transit''. We don't care.
Interrupting your story with one of theirs, then saying at the end of it, when you've just lost the will to live, ''sorry, what were you saying?''
Letting their dog run freely up to yours even though yours is on a lead and obviously not fond of other dogs, then getting upset when an aggressive incident occurs.
Looking really upset and when you ask what's wrong, they say ''nothing''.
Celebrities who have the biggest carbon footprints in the world going on about the environment. Celebrities giving their kids embarrassing names.
Companies who organise things so you are completely unable to open the sealed packaging containing your printer cartridge or similar, without some kind of razor sharp machete.
Leaving a message on your phone with the return call number said so fast you have to replay the message about six times to get it written down, and even then you still have to check it or it's not right. Then when you ring them back they are having a random conversation with someone else at the same time, like their child, while you wait patiently to find out why they rang in the first place.
Always having to go one better than you - of you've been to Tenerife they've been to Elevenorife. If you've had food poisoning they've had rabies. If your kids are getting a school award, theirs are getting a Nobel Peace Prize.
Talking in management speak like ''thinking out of the box'' and ''using paradigms''. Get over yourselves.
Whistling, especially out of tune whistling through your teeth, or happy whistling, or bored whistling - like we aren't too and your whistling is making it ten times worse. Or trying to sing a tune in a stupid voice when they don't really know the words.
Being given change and notes in a big handful with the receipt underneath so you've no chance of sorting it all out without wasting at least three minutes of your life unravelling it all.
Companies that refer you to customer services in India, with nice people who can't understand you and you can't understand them, especially after you've dialled through five thousand different options to find a human, and have endured the queue message for half an hour saying how much they value your call.
Squeezing the toothpaste from the top of the tube and leaving bits of toothpaste in the sink.
People looking at the sweet trolley and saying ''I really shouldn't'' when you know they are going to stuff themselves silly on sticky toffee pudding in about three minute's time.
People at work/neighbours/acquaintances who only have a passing interest in some random topic and try to engage you in conversation about it because they know you are interested in it. Don't bother.
The people in HR having delusions of grandeur; these are the ones who earn most and do the least for a company.
Strangers who try and strike up conversation on a bus/train/plane. People out hillwalking who think they have to say hello.
