Blowing a cork.

I just responded to a message from a board member of our largest client...I should not have done it. He pulled my chain once too many times and I unleashed my response on him, and copied the full board. While I did not overtly call him an irresponsible jackass, redneck, idiot, moron, fascist, pig, my response could reasonably be assumed to have carried those sentiments. I either need, desperately, a vacation or I need out of the business I am in. I'm ready to explode. I feel like I am dealing with idiots and I am just not interested in continuing to tolerate right-wing idiots as clients. Tonight, I am closer to screaming and losing it than I have been in years. I am flat-out pissed off and have reached the end of my rope. I can't take vacation now...I have too many client meetings in the near-term. I can't afford not to take vacation now...I am absolutely assured of losing my clients if I don't get away from them. What a fucking horrible dilemma. At this very moment, I am feeling more stress than I have in years. I am too old for stress this powerful. I need to break something, preferably a jawbone of a board member. How can I relax...running, walking, screaming...none of it will work. A cork is about to blow.