@CrazyOldCatMan re desk sign...
I had that "emergency" one for a while as well, then swapped it for "I'll try being nicer if you try being smarter." My boss got kinda mad until I replayed the "quality & training purposes" recordings of my typical support callers shouting, berating, & insulting me. I asked if he thought that kind of treatment would fly if they tried it to his face in the street. He admitted he would probably end up in jail for assault. I got to keep the sign.
*Cackle*