“Teasers are usually rich kids with nothing to do. They cruise around looking for planets that haven’t made interstellar contact yet and buzz them.” “Buzz them?” [...] “Yeah,” said Ford, “they buzz them. They find some isolated spot with very few people around, then land right by some poor unsuspecting soul [...] and then strut up and down in front of him wearing silly antennas on their head and making beep beep noises.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy