The stuck bolt thread got me thinking about repairs or projects I've attempted that have ended up in worse shape due to ability or loss of temper. Last year, I was doing some landscaping. I was scoring and chiseling some pavers for a decorative path. I was struggling with one unique cut, mis-cutting it twice. On the third attempt, the paver split, I mashed my finger and it set me off. I ended up cursing and throwing the paver to the side.... right into a flower pot stand, knocking it over and smashing one of the pots. What "repairs" have you made worse?