A chemistry lab instructor I had in university had the same sentiments. Her story was regarding an employee adding water to acid instead of the reverse, thereb

A chemistry lab instructor I had in university had the same sentiments. Her story was regarding an employee adding water to acid instead of the reverse, thereby creating an acidic cloud initiating an evacuation of the building [we're talking high volumes of acid and water here; think pumping in the water using a garden hose]. "You'll never have me doing this again," the person managed through tears. "No, I'll have you do this from now on as my go-to person," was the response, "because I know you'll never do this again." This was our "Add Acid" lesson.