Hehe...all of these are cool, ive thought of some more...
Most laptop computers are powerful enough to override the communication systems of any invading alien civilization.
No-one involved in a car chase, hijacking, explosion, volcanic eruption or alien invasion will ever go into shock. (its true!
)
Dogs always know who's bad and will naturally bark at them
Most people keep a scrapbook of newspaper cutting - especially if any of their family or friends has died in a strange boating accident.
Television news bulletins usually contain a story that affects you personally at that precise moment.
During all police investigations, it will be necessary to visit a strip club at least once.