There is a small link between antisocial personality characteristics in adulthood and more TV watching as a child. The risk of early adulthood criminal conviction increased by nearly 30 percent with each hour children spent watching TV on an average weekend. Peers can also impact one's predisposition to anti-social behaviours, in particular, children in peer groups are more likely to associate with anti-social behaviours if present within their peer group. Especially within youth, patterns of lying, cheating and disruptive behaviours found in young children are early signs of anti-social behaviour. Adults must intervene if they notice their children providing these behaviours. Early detection is best in the preschool years and middle school years in best hopes of interrupting the trajectory of these negative patterns. These patterns in children can lead to conduct disorder, a disorder that allows children to rebel against atypical age-appropriate norms. Moreover, these offences can lead to oppositional defiant disorder, which allows children to be defiant against adults and create vindictive behaviours and patterns. Furthermore, children who exhibit anti-social behaviour also are more prone to alcoholism in adulthood.