Loosely translated (with sincere apologies to Latin scholars everywhere), "people are assholes".
Often said with a resigned tone when something unpleasant has happened to you, and it's viewed as the inevitable consequence of declining politeness and consideration by others.
Roger: Dammit, look at how someone parked me in ... I can't get my car out of the space and I'll be late to meet Fred for lunch.
Tom: Well, Rog, you know what they say ... publicum rectumium
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.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.