That was the first thing I was told by the boss when I was a sheet metal parts model makers apprentice, and screwed something up and started saying “I thought….”
He was Polish and actually said “Mox Nix, You Don’t Take Anything For Granted”
NSA Whistleblower. US Intelligence Worker Likely Behind DNC Leaks. Wikileaks exposes DNC blaming Russia. ASSANGE EXPOSES HILLARY. Etc Etc Etc.