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					Originally Posted by Plan9  Severance pay.  Uh-huh.  Enough money to buy a mansion on Mars. | 
	
 It should be noted that severace pay isn't only to say something like, "Kay bye! Here's a parting gift!"
In most circumstances, it's also meant to cover pay and benefits for a long enough period for the individual to find equivalent work.
In CEO circumstances, I think it's to stipulate that they are not permitted to sue the company unless they return the severance money. 
It's simple, really.