Had one. Been one. Hopefully in remission. Working on it.
I look at all bad situations; a bad boss, difficult subordinate relationships, a challenging board; as growth situations. That, however, requires an indefatigable positive attitude; an anticipation of success despite all evidence to the contrary.
Beyond the resume building aspect of surviving a bad work relationship I like keep it in perspective by factoring in "The Sitcom Factor."
It works like this. When I'm at my wits end with someone I remind myself that if this was a sitcom and not real life we'd need a character like bad boss (or difficult employee, or angry customer, or demanding stakeholder) to move the plot along.
And then I go to a metaphorical commercial and take a break from the drama.
Here's a link to an article about bad bosses. Read this: