my eyes playing tricks on me??

Psycho ok. I opened my room door this morning with a loud creek, and it startled a grey-colored cat which ran across my living room towards the main door which leads into the house.For 2 seconds, i stared at the cat, running in my house, MY HOUSE, on the third floor.The first thing that ran across my mind was, 's***, did i forget to close the sliding door last night?!'. So i checked on it. & it was ledged. I walked calmly towards the main door, hoping not to scare the cat with my morning look. & guess what? the cat was no where to be seen. The main door was locked, DOUBLE LOCK. Ok, what just happened there? i SAW that cat, for 2 seconds and it registered in my head. I had enough sleep, and i was thrilled to start my day at work.

So i kept my cool, took a shower, got ready for work & decided to take the stairs down to the car park. As i reached the ground floor, guess what i bumped into???YES-the cat, the SAME, grey cat which was sighted in my living room.....Ok, this is getting freaky. What exactly happened a moment ago? I don't know.

So i came to the office, did some research on cat sightings and its myths. hehe. check out the link http://www.petcaretips.net/black_cat_superstition.html
Myth 1 if a black cat crosses your path, u will have GOOD luck
Myth 2 if a black cat crosses your path, u will have BAD luck

so my question is, if its a GREY cat, will i have GOOD/BAD luck?? i rather believe in the former. My friend suggested that i go buy numbers. After i strike big time,i will share the profit with her. BUT, what combination of numbers to buy? That's the million dollar question here i guess