You would raise your voice to the person you are speaking to. You could also drop the volume of your voice when you say ‘I thought we were friends.’ Also really exaggerate the ‘were’ to show you were friends like in the past
The answer to this question is: <span>individual action and personal responsibility
In general, business people in united states do not care about everything else as long as you can give results.
This really different in Asian culture for example, where most of the business people often value politeness and respectful behaviors.</span>
The answer could be schizophrenia or agitated dementia or a psychotic disorder.