I know you are a heavy smoker like me and imagine if we shut ourselves in a room for the day and don't open our windows and just smoke all day. You know how they say you smoke more when you have company. I wonder how many cigarettes you and I would smoke in that day. I bet our lungs would hurt tomorrow! I try to limit myself to two boxes a day, but it's so hard and I never succeed...I bet if we put our limits aside and indulged without regrets, our lungs would hurt so much!