What are some bad luck charms?

Answer:
A few I can tihnk of off hand are the number 13, breaking a mirror, black cats, the number 4 (especially in Korea, China and Japan), opening an umbrella indoors, spilling salt, walking under ladders, crows, owls, hearing a dog howl, and it's said that if you give someone an empty purse or wallet, they'll have bad luck.
First answer by Kitisvniya. Last edit by Metnathr. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 1 [recommend question].