This is the kind of thing that gets me in trouble sometimes. Obviously, not everyone who reads this is going to know that Harvey, the invisible rabbit in the play, was a Pooka--a "mischievous spirit in Irish folklore," to quote the American Heritage Dictionary.  My philosophy of humor is somewhat counter to that which has guided the newspaper comic strip for a century. The Golden Rule of Comics Success dictates the joke should be understandable to the largest number of readers possible, including complex readers. I don't think humor should be that easy. (more)