As to the definite duties of the clan, we have seen in detail, on the example of exogamy, how much elasticity, evasion, and breach there is. In economic matters as we know already, the exclusiveness of clan co-operation suffers a serious leakage through the father's tendency to give to his son and to take him into clan enterprises. Lugwa (the vendetta) is carried out but seldom : the payment of lula (peace-making price) is again a traditional form of compensation for, really of evasion of the sterner duty. In sentiment, the father or the widow is often far more keen on avenging the murdered one's death than his kinsmen are. On all occasions when the clan acts as one economic unit in ceremonial distributions, it remains homogeneous only with regard to other clans. Within, strict accounts are kept between the component sub-clans and within the sub-clan between individuals. Thus here again the unity exists on one side, but
it is combined on the other with a thorough-going differentiation, with strict watch over the particular self-interests, and last but not least with a thoroughly business-like spirit not devoid of suspicion, jealousy and mean practices.