Among the Kikuyu, two men circumcised at the same ceremony cannot go into each other’s huts or even touch one another and neither may their children by their first wives. The prohibition may be removed by an exchange of goats, or beer, which both families consume together in a hut. This prohibition does not extend to children of younger wives or to grandchildren.3

3Hobley, C.W.n/an/an/an/a, , 87 (H. F. and G. Witherby. By permission).