A monitoring system, comprising: at least one device, comprising at least one processing circuitry configured for: receiving from at least one image sensor connected to the at least one processing circuitry, at least one digital image captured by the at least one image sensor; identifying a nature of at least one relationship between at least one first body part of at least one first person and at least one second body part of at least one second person, where the at least one first person and the at least one second person are identified in the at least one digital image; identifying at least one offending relationship according to the nature of the at least one relationship and a set of relationship rules; and outputting an indication of the at least one offending relationship.