An argument a day helps you work...

The average worker arrives at their desk at 8.09am, spends £3.23 on lunch, drinks three cups of tea or coffee, and argues with a colleague once a day.

A study of 2,000 office employees has revealed a normal working day of nine hours 13 minutes, a 28-minute lunch break, usually sitting at their desk, with ten minutes and 15 seconds spent on social networking sites.

The survey, by Mars Drinks, aimed at finding the average daily life of British workers, also revealed that computer breakdowns were the main bugbear, although many people said they were annoyed when colleagues did not make their fair share of tea and coffee.

Pens going missing and coffee machines breaking down were also said to annoy office employees, who spend almost ten minutes a day banking and shopping online.