Thanks for that CF. But let see if I can explain my line of thinking on this. I believe it is generally accepted that everybody goes out of body every night - that dreaming is a priori an OB experience. Some few of us are lucky enough to be aware of our dreaming and we seek to improve the experience by improving our awareness or lucidity. What I am imagining is the same is true of the RTZ OBE. It may not be so unusual for a person to exit their body in their etheric body and for some it could be a regular habit. There are sleepwalkers who get up in their physical body and unaware, raid the refrigerator. This is not unusual. So it wouldn't stretch the imagination to think a person may 'sleepwalk' in their etheric body, which is to say, get up, wander the house and see and do things.