For those who are also foolish and or scoff, be warned. Remember that you cannot see electricity, radio or microwaves but their effects can most surely be felt. It is the same with Spirit and mediumship. Aura reading, body language and particularly faces give so much away so when doing a reading I never look at the sitter and or close my eyes during the actual spirit contact part. In this way, I prove their trust in me and from then on since it is difficult to read hands, the Tarot and so on with closed eyes, I work normally i.e. with open eyes.
Spirits are also, in many cases often unaware of invading somebody's aura.
The person may feel different in some inexplicable way but simply puts it down to a glitch in their health or whatever. With entities seen or felt, it should also be remembered that in that moment the recipient is practising mediumship. Would that they were able or wanted to develop their mediumship but for many reasons, the foremost of which is fear, all too often the moment is lost to them. Personally, I think he is wrong and the time will come when the world accepts the truth of Spirit Communication. The only spirits swallowed come out of bottles and these are never genies or demons.