boy wish mine was cigarette free! he is up to 2 packs a day now that he got laid off, plus injured his leg, he just sits outside and smokes. ugh. at least it is NOT in the house. I mentioned it he said he was going to prove he is only smoking a pack a day and marked the pack. not til later did I realize he has the pen lol he can mark another pack the same way.. good trick cowboy.