Law of Reruns: If you have watched a TV series only once, and you watch it again, it will be a rerun of the same episode.
Gerrold's Laws of Infernal Dynamics: 1. An object in motion will be heading in the wrong direction.
Gerrold's Laws of Infernal Dynamics: 2. An object at rest will be in the wrong place.
Langin's Law: If things were left to chance, they'd be better.
Klipstein's Observation: If you need n items of anything, you will have n - 1 in stock
de la Lastra's Law