Pietraszewski misrepresents both the nature of behaviour in conflict and the ability of psychology to theorise the relational properties of group designation. At the behavioural level, he focusses exclusively on “attack,” when consolation/care in conflict is equally present and important. At the theoretical level, he ignores existing psychological work on how group perception is shaped by the meta-contrast principle.

The distress inherent in obsessive compulsive disorder (OCD) can often lead to partners, family members and friends becoming entangled with the OCD in terms of being drawn into performing certain behaviours to try and reduce the distress of their loved one. In the past this has often been referred to somewhat pejoratively as collusion, or more neutrally as accommodation. In this paper we emphasise that this is usually a natural human response to seeing a loved one in distress and wanting to help. This paper provides detailed clinical guidance on how to understand this involvement and how to include others in the treatment of OCD along with practical tips and hints around potential blocks that may require troubleshooting. It also details the relatively recently introduced concept of approach-supporting behaviours, and provides guidance on how to distinguish these from safety-seeking behaviours. The ‘special case’ of reassurance seeking is also discussed.