Abstract
Using multi-modal Conversation Analysis, this article demonstrates how teenage boys end assessments of social experiences with insults. When they participate in social activities, teenagers — as everybody else — routinely make assessments through which they produce social organization and create alignments. This article, however, analyzes structures of assessments that are contested in a counter-positional action. It will be demonstrated how the teenage boys end these challenged-assessment sequences through ‘insults’. A feature of these insults is that the conversationalists ‘go mental’, that is, they question the ‘mental’ abilities and competences of their co-participant and thereby exclude him from the status of being a competent member of the group. In and through such conduct, the participants make the social function as well as the risks of assessing explicit: as competent members of a social group they are being held accountable for having claimed knowledge of the assessed target and may on these grounds be excommunicated as someone who does not understand social life.