I'm sure you believe something weird. I'm relatively superstition-free, but I have close friends who are Russians, and some Russians (PLAYFUL STEREOTYPING, YOU ARE A DELIGHTFUL PEOPLE) are basically 13th century doctors in terms of their attachment to semi-magical ways to protect themselves and their loved ones from the vagaries of fate. EXAMPLE: Wishing someone a happy birthday before their actual birthday. Or having a party before their actual birthday. It's out! It's right out.