1. Friday the 13th
2. Four (in China...reason being in Chinese, "four" and "death" sound similar)
3. groom can't see the bride in her dress before the wedding
4. Step on a crack break your mother's back
5. Breaking a mirror is seven years of bad luck
6. Rabbits foot for good luck
7. Knock on wood
8. Horseshoe is good luck
9. Throw salt over your shoulder as soon as you spill salt
10. Black cat crossing your path is bad luck
11. Never walk under a ladder.
12. Opening an umbrella indoors
13. A dog eating grass brings rain
13 reasons why Nordinho is the best site ever
1. the people on it are so friendly and nice