I love that we still use the word "horseplay ." You most often see it used on signs at swimming pools.
 Dictionary.com: noun
rough or boisterous play or pranks.
"most commonly associated with Beijing, China. In Beijing, hutongs are alleys formed by lines of siheyuan, traditional courtyard residences. Many neighbourhoods were formed by joining one siheyuan to another to form a hutong, and then joining one hutong to another. The word hutong is also used to refer to such neighbourhoods," according to Wikipedia, which also says: "Following the founding of the People’s Republic of China in 1949, many of the old hutongs of Beijing disappeared, replaced by wide boulevards and high rises. Many residents left the lanes where their families lived for generations for apartment buildings with modern amenities. In Xicheng District, for example, nearly 200 hutongs out of the 820 it held in 1949 have disappeared."However, many of Beijing’s ancient hutongs still stand, and a number of them have been designated protected areas. The older neighborhoods survive today, offering a glimpse of life in the capital city as it has been for generations."Many hutongs, some several hundred years old, in the vicinity of the Bell Tower and Drum Tower and Shichahai Lake are preserved amongst recreated contemporary two- and three-storey versions. This area abounds with tourists, many of which tour the quarter in pedicabs."