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Apple kicked Greenpeace out of the London Apple Expo last Thursday after telling the group (running a project called "Green My Apple") to only hand out leaflets at its own stand and to stop taking pictures of other stands.

But the Greenpeaceniks returned Friday, according to their blog.

At one point some plain clothes and uniform police arrived to say the organisers had called the police to claim we where throwing apples at passers by - of course this was obviously not true. After a friendly chat the officers left with an organic apple and wondering who had called them and wasted their time.

MacExpo evicts environmentalists [Register]
Green my Apple returns to Mac Expo [Greenpeace blog]