black cat, good luck or bad luck?

different people believe different things. some say good luck like in Europe, apart in Italy or Spain, a black cat crossing one's path is considered GOOD luck; however they were also seen by the church as associated with witches. Black cats (and sometimes, other animals of the same color, or even white cats) were sometimes suspected of being the familiars of witches. The black cat was still usually seen as GOOD luck.
In places which saw few witch hunts, black cats retained their status as GOOD luck, and are still considered as such in Britain and Ireland. Beside that Researchers at the National Institutes of Health discovered the gene mutations associated with a black coat in three types of black cats: the domestic cat, jaguar and South American jaguarundi. The mutations affect a gene in the same family as one that causes a resistance to HIV in humans.
But in America, the black cat represents bad luck because black represents evil and witches familiars were also depicted as black cats. it's all depend on your belief, but i think that superstition is totally wrong. good luck and bad luck came from yourself, and with what way you solve your problem and your thought.