De Dogon, in tegenstelling tot wat iedereen denkt niet afkomstig van Sirius b, maar op sociaal vlak wel een tikje buitenaards, namelijk in hun manier van groeten.

Another example is the custom of elaborate greetings whenever one Dogon meets another. This custom is repeated over and over, throughout a Dogon village, all day.

During a greeting ritual, the person who has entered the contact answers a series of questions about his or her whole family, from the person who was already there. The answer is sewa, which means that everything is fine. Then the Dogon who has entered the contact repeats the ritual, asking the resident how his or her whole family is. Because the word sewa is so commonly repeated throughout a Dogon village, neighboring peoples have dubbed the Dogon the sewa people.