For the exchange of colors see Bolte u. Polívka 1: 124–126. For
place-changing and killing of the wrong victim see the same, 499–501.
Compare Parsons, Sea Islands, 128.
The incident is common in African story, e.g. Tremearne, 430; Dennett,
47; Torrend, 33; Junod, 163. The setting of the story is often similar
to number 23 where a parent calls upon outside aid to get rid of a
troublesome child.