Etiquette

I have to remind myself sometimes:

Say you have a poetry host who sets up a reading series the same night as your series and refuses to acknowledge it on his page BUT goes on record on other Facebook pages dissing your reading (though he hasn't attended it for almost a decade).

And say said poetry host starts complaining on his Facebook when the same twelve people he targets haven't come in a while, AND he starts contemplating its hiatus until the new year when it's going to be put on a new day when the same twelve people can all agree to attend, presumably week after week...

It is still not proper manners to comment anything along the lines of "Shut up you ****ing baby!"