I work in an industry rife with superstitions. Don't use your married name before the wedding! A spider on your dress is good luck! Stick a large coin in your shoe!
On a personal level, I am superstitious. They don't normally hurt anyone, and even if they don't actually...
Hold on to your hearts, folks, because mine damn near jumped out of my chest with this one. I'm usually a bit Grinch-y, but anytime one of my couples starts their vows (or something like this happens), it grows three sizes.
