Do You Believe In Superstitions?

Yesterday I noticed there was a ladybug on my leg. I was always told ladybugs represented good luck so of course I got really excited thinking it must be my lucky day!

Then it got me thinking about superstitions. I never really thought of myself as someone who believes in superstitions, like if you break a mirror you're doomed to seven years of bad luck. But I was wondering do you believe in superstitions? And if so, which ones?