If I get so fustrated that I can't play properly anymore, then something is wrong outside the game. Be it headaches, work/family problems or whatever. And that isn't just gonna go away by turning it off, even worse I lose the game distracting me.
I can't really cool myself down properly in situations like that. I'll try dumb youtube videos of kitties or something for minimal success. But probably just gonna end up being pissy and annoyed the rest of the day. :/
I'm glad this isn't an especially common occurrence for me.