A Freudian slip is when you say one thing but mean your mother. 

"Since all the Heaven's Gates members were discovered wearing Nike sneakers,
 do you think Nike might change their slogan to 'Maybe You Should Think
 About It'?"
                        -- Scott Adams, DNRC Newsletter 14.0

It's not hard to meet expenses, they're everywhere.

Where there's a will,
There's an inheritance tax.

"You stop that. You scare my chickens."
                        -- Wing Commander IV, when you quit