Well blow me down! Half a world away from the wiley baboons of the Cape Peninsula, (South Africa) here in South East Asia, Cambodia – the Angkor Wat troop of long-tailed macaques (Macaca fascicularis) have similar tactics, grabbing an item and waiting for the gullible human to offer decoy food in exchange.
There you have it. Feed wild animals, habituate them to receiving food, they become pests and then they “steal” items in exchange for food. Clever creatures.