The Great Proletarian Cultural Revolution meets the Canton Trade Fair:
By the time of the next fair, things were still not under control. In August 1967, over 1,000 armed rebels built a fort and camped outside one of the main exhibition centres, blocking the entrance. Preparatory work for the autumn fair was disrupted and the opening was delayed from November 15th to December 15th...
...The Guangzhou Hotel was also built especially for the fair and at 86 metres and 27 floors was the tallest building in China at the time. Even so, plenty of foreign traders were happy to sleep in hotel corridors and write self-criticisms for Red Guards, just so they could get a slice of the action.
People are still doing that.