“…Although media reports focus on the individual characteristics of such youths and one might anticipate that psychopathy would increase the risk of appetitive violence, given associated qualities including callous and unemotional traits (Frick and White, ), research suggests that social, and in particular peer factors, are more influential in determining which individuals will engage in appetitive violence (Ching et al, ). This finding is consistent with Chan et al () who found that happy slapping by juvenile offenders was more likely to occur when co‐offender(s) were present and also Morrell and Scott () who report that group dynamics may result in some young people feeling anonymous, allowing them to behave in uncharacteristic ways. These findings are also consistent with Gardner and Steinberg's () experimental work on risk taking, which suggested that adolescents focus more on the benefits than the costs of risky behaviour when in peer groups.…”