if a black cat crosses you when you are going out ...  

hahaha good one. But in India we believe when a cat and specially Black Cat cross the road then you should change your way otherwise something wrong can happen. And it's happen with me once. So i belive on it.

Here in the Philippines when you are walking somewhere and a black cat cross your way it means bad luck. You should not go wherever you want to go because there something wrong might happen. But it's only one of the beliefs and superstitions of old people here.

In the States it is a myth that if a black cat crossed your path it means bad lick for that day. The thing is I used to own a black cat and he crossed my path all the time and I never once had bad luck. It is a fairy tail myth if you ask me.

That is hilarious. A black cat darted in front of my car last night and almost got run over! It was a three lane street and the driver on the side of me clearly didn't care.

My thoughts exactly..
Cat's have to cross the street too