My recent soaping mistake - I was diluting a batch of liquid soap via canning jar method. I had one jar too many so put the last jar in a saucepan of water by itself. I've been canning for years and know better. I didn't put a rack or dishpad in the pan. Bottom of jar cracked clean off. I hated throwing away those 10 oz of beautiful, golden liquid. Hopefully I'll remember that next time I'm too smart for my own britches.