"In all investigations, the answers you get depend on the questions you ask: the questions you ask depend on the assumptions you make and the assumptions you make depend on how much you think you know, even more on how much you take for granted and most of all, in serious investigation, on how willing you are to accept what William James called the pain of a new idea"
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Take a glass of water to bed and leave it on the bedside cabinet.
When you awaken, spit into the water.
Do NOT try to gather spit from the inside of your mouth, just spit whatever you have, however little, into the water.
Allow to stand for 15 minutes, then gently swill the contents round in the glass.
Hold glass up to the light.
If the spit remains on top of the water, or dissolves, you are OK.
If it turns the water cloudy, you have a Positive Indicator.
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