If you've ever been tempted to write your former boss a seething farewell letter, put down that pen!

According to Harvey Mackay, author of "We Got Fired--And It's the Best Thing That Ever Happened to Us," here are five ways to avoid career suicide:
  • Be as careful as they are. Your boss would never send you a letter exploding with insults and obscenities, so neither should you. If you plan to take legal action, get the blessing of your lawyer before you put anything in writing.
  • On the flip side, a touching letter won't get you re-hired. Even if you've faced death and family strife, it won't get your job back. According to Mackay, companies almost never reverse their hiring decisions. Another way to avoid career suicide--
  • Be ready to play your next hand. People talk, and you could need a recommendation for your next job. Leaving a bad taste in your employer's mouth will only hurt your chances of moving on. You should also try not to offend co-workers. You never know who could move up and be your boss one day.
  • Be mysterious after your exit. It's best to keep off your old boss's radar until you need a reference or connection. Don't keep dropping by the office to check in, or to see old colleagues. Keep them guessing about your brighter future.
And the last thing you should never do? Write a letter with these statements to your old boss.
You are "a waste of precious oxygen," a "techno-moron," or "sad proof of the Dilbert Principle."
Mcakay says these are actual excerpts from poison pen letters written to bosses after a firing.
If you're between jobs and you'd like to check out Mackay's book, it's called "We Got Fired. And It's the Best Thing That Ever Happened to Us".

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