GreyShuck

Not specifically for the eyes or posture, but for overall approach and attitude to situations like this:

• Marcus Aurelius’ quote: Begin each day by telling yourself: Today I shall be meeting with interference, ingratitude, insolence, disloyalty, ill-will, and selfishness – all of them due to the offenders’ ignorance of what is good or evil. - and stoicism in general.
• Imagine them sitting on the toilet. You can’t take them too seriously like that.
• Take a longer perspective: consider whether this interaction will be of any significance at all in 10 years time?

No. I’m not interested in interaction when I am buying or selling something. Nor playing games, or getting or giving social strokes or whatever. I will do that on separate occasions.

I will pay the price asked or I will look elsewhere.