Cue the Flying Pigs/Playing With

Basic Trope: Someone says something will happen when pigs fly... and a pig comes flying in.
 * Played Straight: Charles says "Alice and Bob will get together...when pigs fly!" A winged piglet appears as Alice and Bob are walking down the street, holding hands.
 * Exaggerated: An entire herd of winged pigs makes an appearance after that remark.
 * Justified:
 * Charles is Tempting Fate
 * The same mysterious force that causes Alice and Bob to get together causes the pigs to fly, possibly in response to Charles' comment.
 * Inverted:
 * Subverted: Charles makes his comment, and nothing out of the ordinary happens.
 * Double Subverted: But then a football ("pigskin") comes flying through the window.
 * Deconstructed:
 * Reconstructed:
 * Parodied: A honey-glazed ham falls from the ceiling into Charles' hand.
 * Lampshaded: "So...about those pigs, Charles..."
 * Averted: No pigs or pig parts appear when Charles makes his comment.
 * Enforced: Tempting Fate
 * Invoked: Making a comment like Charles' above.
 * Defied: Charles cuts himself off the moment he's about to say the phrase, thinking he's going to be Tempting Fate.

You'll go back to Cue the Flying Pigs, when pigs fly!