Lies

My son smokes cigarettes, I've just caught him in the past week. I've had my suspicions for some time now- with the smell of his clothes and his need to go on these long walks at strange hours in the day. I confronted him a couple of months ago about it and he denied it but a couple of days ago I found cigarettes in his jacket. He is only 13 and I really don't think he should be smoking but what I hate the most is his lies, I'd be less angry had he told me that he smokes. The irony is that when he was about five he persuaded me to give up smoking. I used to smoke while driving and it really bothered him when he was in the back seat, it's because of him that I haven't touched a cigarette in years.