You mean a 'really' ancient civilisation such as the Greeks or the Egyptians, or will a more recent example do?

Roman teenagers from the 17th/18th/early-19th centuries grew up in the street and the society they lived in was rife with violence. Every rione (ward) of the city usually had a long-standing rivalry with another, and these neighbourhoods' identities were very strong; for example, the people from Trastevere despised Monti, the monticiani hated Trastevere with a passion, everbody hated the Ghetto and so on.

Thus many teenagers and their friends often formed what we'd call neighbourhood gangs, but - and this is an important point - there was no extorsion or racketeering going on: these hot-headed youths spent their days fighting the other youngsters from different neighbourhoods. These 'battles' often took place in the Roman Forum and were known as battaglie a rocci - stone fights, whose ammuniton was provided by the nearby ruins. Knife, sword (more precisely the saracca, a type of sabre) and even slingshot duels were also extremely common among young people, to the point that hospitals regularly received people with related wounds... especially during or after the Carnevale, as recalled by father Bresciani in his Edmondo, o dei costumi del popolo romano; an astounding number of youngsters died because of such forms of 'entertainment'.

Hostarias, or pubs, were the quintessential meeting place for your average Roman and were also the kind of place in which brawls were much too common; these youngsters, but also their older counterparts, lived a honour-based lifestyle in which even the minor offences had to be 'settled' - you're looking at someone the wrong way? Snickering at that guy a table over? Then you're looking for rogna, or trouble. As mentioned earlier, Jews were also made the object of such 'innocuous' pastimes... when outside the Ghetto, they had to wear a yellow ribbon on their hats and were easily recognisable: many a youngster took one of them during the Carnevale and made him/her roll down the Capitoline Hill inside a barrel. Other forms of 'entertainment' during such a festivity was the corsa dei barberi, during which wild horses were made to run through the via del Corso and contestants had to stop them with their bare hands. Perhaps unsurprisignly, too many young people died this way.

Card and dice games were extremely popular, and more often than not source of disputes... many of which ended up badly for the losing party. Favourite games were the morra, faraone, and the like but itinerant puppet theatres, the most famous of which belonged to the vitriolic Ghetanaccio, were popular as well; these often narrated the histories of fol poems such as the Meo Patacca. Finally, attending public execution (which were particulary cruel back then) was a popular pastime for both young and old people; mazzolature - during which the prisoner's head was smashed on a stone pedestal with the help of a hammer - quarterings and decapitations were also an occasion for social gathering exactly the same way a market or the hostaria were.

Unfortunately this question is too vague as it is currently worded. We don't allow trivia-type questions or "throughout history" type questions, and this is bordering on both.

If you could re-post with a specific civilisation or time period that would be more acceptable. Thanks.