A UFO contactee is someone who has had close encounters of the friendly kind with extraterrestrial visitors or UFOnauts. This contact involves communication with them, sometimes involves voluntarily entering their spacecraft, and even being given rides by them. This is very different from a UFO-abduction case, a sort of case which may be called a close encounter of the involuntary kind. The UFOnauts take the abductees aboard their spacecraft against their will, and often do clumsy medical examinations of their captives.