Another one of these, but I like it. ;)
When an Australian Bushman died, his body was lowered into a grave where a special kind of gravedigger awaited it. This person’s job was to slice up the corpse and hand out bits of the flesh to the mourners. The order in which the relatives partook of the feast was strictly prescribed. A mother ate from her children, and children from their mother. A man could eat his sisters husband and his brother’s wife. A father however, could not eat his children, nor children eat their father.