Let's get it out of the way: I am terrible at chess. I also have a bad temper and hate losing (bad combination, I know). I can see when the end is coming and I am going to get manhandled for the next 5+ moves or whatever, or am just getting outplayed. Sometimes I resign in sheer frustration and anger. Aside from not being a great way to learn (I acknowledge this) I just want to know is it bad manners?