Ten protesters who occupied Fortnum and Mason during an anti-cuts demonstration earlier this year have been found guilty of aggravated trespass.
The luxury department store in central London was targeted by members of the UK Uncut campaign group on the day of a large TUC march on the capital.
London's City of Westminster Magistrates' Court heard protesters organised the March 26 occupation of the shop on Twitter "as they believe that the store is guilty of tax avoidance".
Euan Storrar, 24, of Sheephouse Lane, Dorking, Surrey; Sebastian Jones, 20, from Southampton; Daniel Lichman, 25, of Harlesden Road, north west London; Oliver Pope, 20, of Pentire Avenue, Southampton; Jake Colman, 22, of Pretoria Road, London; Adam Ramsey, 26, of Alyth in Perthshire; Edward Bauer, 23, of Queens Road, Fleet in Hampshire; Grainne Gannon, 29, of Prince George Road in north London; Oliver Rodker, 42, of Hamilton Road, Manchester, and Peter Speller, 26, of Campbell Road, Oxford, were among a number of protesters who rushed through the doors of the store just before 4pm.
District Judge Michael Snow told the court: "The scene inside the store was chaotic. Protesters were shouting and screaming at a very high volume."
There were chants of "If you don't pay your taxes, shut you down", "Whose shop, our shop" and "Occupy, occupy, pay your taxes", the court heard.
Megaphones were used and, having overwhelmed the police officers who were trying to keep them out of the store, protesters took over control of its Piccadilly door.
Some of the demonstrators were masked and many carried placards and were handing out flyers, District Judge Snow said. Other protesters hung banners while drums were beaten, horns were sounded and bagpipes were played.
Tents were erected and volleyball was played across the displays. Some goods were stolen from the store during the occupation, some were damaged and others were swept on to the floor.
Tape bearing the words "closed by UK Uncut" was wrapped around the outside of the store and around displays. As a result of the protest, the store suffered lost sales amounting to £54,581, the court heard.