I only believe in one superstition. I believe that if I were to believe in any superstition at all, I would believe in it so strongly that my mind power would make it physically manifest itself as bad juju, and other superstitions would constantly be making life worse for me, at no fault of my own. Windows and mirrors shattering as I walk past them, ladders falling and landing in front of me while I'm walking, black cats materializing in front of me to cross my path, some guy following me around with salt and pepper shakers to place next to me when I'm about to move so I knock them over, not having any wood to knock on when I need to, an umbrella opening itself indoors as I hold it, hats appearing on my head as I go to bed, dogs howling around me everywhere I go, getting out of bed on the wrong side, hearing a rooster crow at night...

Good thing I don't believe in any superstitions, right?