Rich people are either unhappy or private detectives. Teenagers are always smarter than their parents. Teenagers who have sex are destined to die in grotesque ways. There are no ugly women, only ugly men. Thunderstorms spontaneously create murders.
Computers never crash.
When people are dead or dying, there will be a trickle of blood from the corner of their mouths. Nothing cures the blues like killing 30 or 40 people. Bad guys will make elaborate inventions to kill the good guys, but will leave before finding out if they work. Christmas Eve and Halloween night lasts for three or four days. Police never wait for back-up.