Among the Garenganze people, in 1884, Mr. Arnot often chid them "for their want of bravery in not hunting down the many wild animals that prey around their towns, carrying off the sick people, and frequently attacking and seizing solitary strangers. They excused themselves by explaining that these wild animals are really 'men of other tribes,' turned, by the magic power they possess, into the form of lions, panthers, or leopards, who prowl about to take vengeance on those against whom they are embittered. In defending this absurd theory, one man said it was not possible for a Luba and a Lamba man to go out into the country together without one stealing a march on his neighbor, getting out of sight, and returning again in the form of a lion or leopard, and devouring his travelling companion. Such things, they say, are of daily occurrence amongst them; and this foolish superstition leads them not only to tolerate the wild animals about, but almost to hold them sacred." This particular superstition still exists extensively. As late as 1898, it is stated of the Barotse of Southeast Africa: "They believe that at times both living and dead persons can change themselves into animals, either to execute some vengeance or to procure something that they wish for: thus a man will change himself into a hyena or a lion in order to steal a sheep, and make a good meal off it; into a serpent, to avenge himself on some enemy. At other times, if they see a serpent, it is one of the 'Matotela' or slave tribe, which has thus transformed himself to take some vengeance on the Barotse."[69] LUCK. There exists a custom, even among the civilized, for the seller of an article to hold back a small portion after his price has been paid. When I first met with this custom, I was indignant at what seemed like stealing; and yet it was so open, and without any attempt at concealment, that I was amazed. One who brought for sale a bunch of plantains twisted off and took away one of its "fingers." Another who had just been paid for a peck of sweet potatoes deliberately picks off one tuber. Another who brought a gazelle for sale would not complete the bargain till I had consented that he might remove the gall-bladder and a portion of the liver. I learned that all these were for "luck": in order that the garden whence came that plantain bunch or potato should be blessed with abundance; and the hunter, that he might be successful in his next hunt. The gazelle is credited with being a very artful animal, the cunning being located especially in the liver. One might ask why, if those pieces are so needed for luck, the owner did not take them before selling, and while they were still his own and under his entire control. I do not know their exact thought; but the statement was that the chances of good luck were greater if the pieces of plantain, potato, meat, etc. were abstracted after the article had actually passed out of the seller's possession.