I remember a scene from an Australian TV series in the '80s called The Flying Doctors where one of the characters was stranded in the outback. At one point he

I remember a scene from an Australian TV series in the '80s called The Flying Doctors where one of the characters was stranded in the outback. At one point he took out a pouch of salt, ate a pinch of it before taking a swig of water. Don't know why, but that scene always stuck. Now I know why he did it!