Re: instant fail Sulfuric acid and 50% Hydrogen Peroxide.
AKA Piranha. I used to use it when I had a different job in the Semiconductor industry. It gets very hot and will destroy anything organic. It was used to clean the wafers before certain steps.
By accident one day a worker mixed Hydrofluoric acid with 50% Hydrogen Peroxide instead of Hydrochloric acid. It attacked the ceramic bath but didn't eat through.
How did he mix them up? He didn't speak or read English and grabbed the wrong bottles.