(occupationally hazardous disclaimer: expressed in my humble opinion)
... is a state of mind where one's pig-headedness clouds and persists in a person's normally rational state of mind. In my case, the condition occurs when I encounter an equally adamant individual hell-bent on proving his or her point of view, without due consideration for a different perspective of an issue at stake.
In the work environment, the solution is simple, particularly in my line of work (people actually call it a profession but I prefer to say I belong to the service industry). Having to face people from all walks of life in many different environments have made me a little more resistant to all manners of reactions, ranging from exchanged pleasantries ("Sure, we'll get document xyz for you as soon as possible.") to stoic indignance ("I don't see your point. Period".). My approach to people who behave like you owe them a living is to persist with a placid smile and eternal patience. (As you can see, I am in dire need of a new line of work, or risk becoming the next Vlad the Impaler).
I might be playing the age card too often, but I realised that I no longer react lightly to people who rub me the wrong way. However, the good news is that only interaction with certain individuals will induce the next level of extreme reaction in me: defiance. My dad prefers to think that by some genetic disposition, I have inherited his temper and have too much of an ego to cave in to another person's demands. Maybe that's what has been deemed to be an inability to suffer fools. Of course, that's just my opinion.
Need Prozac? Carry on reading for an alternative cure.
I've Been..
Satisfying the wanderlust fascination.
Slacking.
Sleeping.
Shopping (wayyyyyyyyyyy too much).
Reading NW, Famous and 8 Days voraciously.
Chillin' with a pint of good beer or latte.
Indulging in purposeful conversation.
Otherwise, I'm happy for you to leave me alone.