Why is it that people standing at bus stops wait until the bus arrives and they are about to board before they start to rummage in their bags to try and find their bus pass, money or ticket?

Surely they knew they were going to require these things in order to travel?

Why oh why can't they stand at the stop with these things in their hand or at least in an accessible pocket?

But no, they have to hold everybody else up while they search endlessly through bags and pockets, before they find what they're looking for. No wonder buses find it so difficult to run to time.

Once on the bus, can they walk purposefully down the aisle towards an available seat? No of course not! They must stop, then block the gangway preventing anyone else from moving forward while they scrutinize the passengers to see if there is anyone they know, then strike up a conversation about the strange coincidence of them both being on the same bus at the same time.

Bear in mind these people probably all live in the same place, that's why they know each other, will probably see each other again next time they catch a bus, and remark on the coincidence all over again, is why I find it infuriating when I'm kept waiting behind them.

I've got another thing I want to moan about. These same people are nearly always ahead of me when I'm in a supermarket checkout queue. Not only can they not find their purses/wallets quickly, but also when at last they do have them to hand, they are full of coupons they want to have scanned to get the equivalent of three pence off the price of the product or extra loyalty points.

Every one of these coupons must be examined by the checkout lady and very often they are out of date which necessitates a longwinded conversation about how they had no idea, with promises to go through them more carefully in future before coming into the shop and eventually finding an in-date coupon.

However, they haven't bought the right product. Sometimes they are so keen to get the points or money off - the checkout lady has to send for another member of staff who will then go and fetch whatever the product is so the coupon can be used.

At long last we come to the actual payment. Is that straightforward? No. These people don't pay cash; they have a selection of loyalty cards, debit cards and credit cards. They don't seem to know if they are in Sainsbury's or Morrison, they haven't got their glasses on so they can't see which card is which, they need confirmation from the poor long suffering checkout lady (who by now has turned in to an old woman), that they are indeed in the right shop, they have difficulty in inserting their card into the machine and of course cannot remember their PIN number.

If they remember a number at all it will be for a different card that they have left at home. After several attempts at remembering the dog's birthday they can at last pay. Can they just pay and go? Of course not - now they have to check the receipt, query the number of points, the two for one offers, the sell by date on the milk, all this before they even start to pack.

This is why I no longer shop in large supermarkets; I have my groceries delivered. If you are impatient and easily annoyed like me I suggest you do the same.