It’s Friday the 13th, which some folks believe to be bad luck. To ward off the evil event spirits (and to learn from each other’s bad luck), we’re asking you to share your event horror stories below.

Did a caterer never arrive for your food fest? Electricity go out during a concert? The cake bake flat for that surprise birthday party! Tell us about it (and what you did to fix it) in the comments below. We’ll be sharing our favorites through social media.