i smoked as a young teenager at school -- one of my mates used to help himself from his father's endless supply ( a Birmingham city councillor..nuff said ), and hand them out. i gave up when i started work -at 15--as i couldnt afford to buy them.
when i started seeing my 2nd wife-to-be, she smoked--and it started me off. i was 35, and smoked till i was 48. a week in intensive care with a heart attack at 48 persuaded me of the error of my ways. my wife still carried on till she died 11 years later. ( it wasnt the cause of her death ).
i think people who smoke these e-fags look ridiculous--blowing out clouds of smoke. but it does serve as a reminder to keep well away from them.