Have you ever kept an old shirt and an old jacket in your car to slip into so that when you drove and smoked, the smell would not get on your clean shirt.  The only reason you would do this is because not only were you an addict, but you didn't want anyone to know you were an addict. 

Did you ever have have one gas station in which you bought gas, soda, etc but another gas station that you bought only cigarettes at because you didn't want the people at 1 station to know you smoked.

I used to do stuff like this alot.  I was a closet addict.  Now I am just an addict.  I've been free of nicotene for 14days.

Dtrain