That time a stray cat in Toledo taught me about mold prep
I was helping a buddy with a small bronze pour in his backyard foundry last spring, and we left the mold boxes out overnight. A neighborhood cat decided the warm sand was the perfect litter box. We didn't notice until we were about to pour, and the ammonia smell hit us when the metal heated it up. We had to stop everything, break down the molds, and re-prep all the sand from scratch, which took three extra hours. Now I always cover my mold boxes with a tarp, no matter how quick the job seems. What's the weirdest thing that's ever ruined your setup?