When you become so isolative in your life, that you enter a cocoon, becoming self sufficient & not reliant on others.
You care not for interaction of other human beings as they bore the tits of you.
Any small talk attempted by strangers will incur an involvement of involuntary vomiting towards them & onto them.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.