A childhood belief about vampires

I used to beilieve that if you look at the mirror at night: you will see that there is something wrong with your face, either it is all in blood, or your eyes are shining with red, or your teeth are really long. and if you still look at yourslef in the mirror at night and don't see anything wrong with you, than you can be sure that vampire(I still don't know why it is vampire and not any other creepy creature)will come and get you. I am still kind of terrified of looking in the mirror at night. I always get the feeling that somebody is watching me.

I also used to believe that if you come to the bathrooms' mirror at night with a candle lit up, and call "Bloody Mary" 3 times than she will come and hang you. I tried to do that once, but I got so scared so I ran away from the bathroom and I couldn't even cry.

I used to believe that if you look in the mirror (your favorite one) long enough than you will see your future, but since you already saw it, it will change and it will be bad, because you tryied to cheat it.

Well, I still think that there is something wrong with the mirrors, even though they are totally scientifically explained.