that's totally implausible but necessary to the story –- a coincidental

meeting of your two main characters, for instance, or, maybe, the only

way you can free your hero from certain death is with a freak,

unexpected earthquake that jolts the steamroller that's about to hit

him -– c'mon, we've all done it. We've all resorted to these kinds of

tricks, told ourselves, "hey, look, it's a buy, okay?" or "it's way

deep in the third act, at this point, the audience wants an earthquake

to happen," or, "it's happens on page six! It's a romantic comedy! The

audience expects a certain amount of fanciful whimsy…"