Don't cut your hair or your fingernails at night, because if you do ghosts would be around......
Don't open umbrella inside your house or there will be snakes around.
Don't buy white paper lanterns or grow banana trees because they harbor ghosts.
Don't worship Gods at night (except for holidays were you are allowed to) because you will get sick.
Don't point at grave stones because the ghost would haunt you.
Don't have a party for your birthday when you are old because they spirits of Hell would remember you and you would die.
This happened to my relatives a lot....
my dad's great aunt died at the age of 98 because of THAT!
Don;t show your thumb when a funeral car passes you.
Don't point at the moon with your index finger, because next night the moon will cut your ear.
Don't draw on people faces when they're asleep or their soul can't get back into there body's.
Don't whistle at night or the snakes will come,again :huh:
Don't mess with tombs because the spirits would harm you.
When my mother was little, she knew a kid who peed on graves and he mysteriously had his legs amputated.
If you comb your hair at midnight in front of a mirror a hundred times, you will see your future wife.
When a pregnant black cat hops over a corpse it will stand up.
Big ears bring fortune.
Don't EVER CURSE at the gods because you will be in SO MUCH TROUBLE!
Ok. I did make one up! The rest came from the China History Forum.