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Many large supermarkets are self-service in the UK. When you go into one of these   you take a baskets and you put the things you wish to buy  it. You line up at the cash desk and pay for everything just before you leave.

If anyone tries to take things from a shop  paying, they are almost certain to be caught. Most shops have store guards who have the job of thieves. Stealing is a serious crime by the police and the courts.

When youare waiting to be served in a shop, it is important to wait for your . It is to try to be served before people who arrive before you. Many people from foreign countries are  at the British habit of lining.