It is even worse when your cantor or choir member(s) start up a loud conversation near the console as you are playing a postlude. Why not step outside where you need not shout over the organ to converse? Why not show the organist - who is supposedly your friend and colleague - a little respect? Would they do this to someone who was singing a solo, or playing a guitar or violin or even working diligently at their computer? Of course not! Res ipsa loquitur! SIGH!!