Fascinating story OP and thanks for sharing. I don't think this was an isolated thing - I think demons are - at least in my area held strong by the "principalities and powers" of Satan - present in at least half of the people (including children) that I see.

Years ago I began to describe what I could feel - I could tell if someone was a "contrary spirit" by looking at them, hearing their voice over the phone etc. Sometimes I would be tricked and not know until I had alreay interacted with them for a minute - or a few minutes - then BOOM - you know.

I'm saved, and I think demons in people sense it right away - so an otherwise friendly seeming person suddenly becomes nasty or is quietly seething and working against you.

I have to say though, that if I saw someone with actually demonic eyes sitting near me, I would leave.

You say you are not afraid of anything, and I understand that because I feel the same way. BUT - it can be misleading in the sense that we should ALWAYS be afraid - in the sense that we say constant prayers of protection and avoid being around demons at all costs. We need to remember that Satan is the god of THIS world, and in this end times -God has removed his hand of protection over our country. So lots of bad things are going to happen - even to believers. Still, we remain steadfast in our faith, and call upon the power of Jesus to deliver us.