An anecdote.

“The electrical wizard” Charles Steinmetz was an inveterate smoker. Once a notice that forbade smoking was posted in the General Electric plant where he worked. Steinmetz ignored it till an executive asked if he wasn’t aware of the rule. The answer was a cold indifferent stare. Next day Steinmetz didn’t show up, and for two days none heard from him. Important work remained untouched. The company began a serious search. It ended in the lobby of a Buffalo hotel. There he was found sitting at ease in a huge chair, puffing a cigar. When told that the whole company was looking for him, and asked why he had left like that, he calmly said, “I came up here to have a smoke.” After that the smoking rule was never applied to him.