My worst brew day came this past weekend. I bought the wrong amount of crushed grains at my LHBS. Then while brewing the beer I put my wort chiller in to sanitize. Turned my back for one minute and the hop bag had moved the chiller just enough to move the clear tubing by my stove top burner. Both tubes melted. I really hope this beer turns out well, and I consider myself lucky if this is my worst brew day ever. What was your nightmare brew day?