Being the emotional retard I am, I wouldn't mind knowing how an F would negotiate absolute 'wit's end'. My instinct under extreme emotional influence is to collapse in on myself and shut up for about a week. I'll think a lot amid deadpan confusion and frustration, trying to make sense of it. I know there are better ways of dealing, hence this thread.
So, you Fs are capable of understanding your feelings and acting accordingly.
Lets hear it.
Obviously subject to situation, but say what you can.