In dealing with some problems in life, if a person makes a 99.9% effort or commitment to make a change they may have some success to show for it. In quitting smoking, a 99.9% effort will result in a total failure of that quit.
“You know smoking two or three cigarettes is better than having smoked two or three packs!”
Resources related to the implications of a puff once you have quit
Lost long term quits
Can taking a break from smoking help you “get rid of” nicotine tolerance?
The power of nicotine addiction
Don’t let a slip put you back to using
Maybe a puff isn’t that big of a deal
Quitting by gradual withdrawal
Never take another puff