When I was about 12 years old I went to the joke shop in town an bought a box of snappers which were a small paper bag with some powder in them, when you threw them onto the floor they made a loud 'snap' sound. This kept me amused for hours ,now bear in mind this was the late 70's and it was not yet socially unacceptable to smoke, so both my parents did, something I didn't like - so I decided to make a protest by using my last snapper. When my mother asked me to get her cigs from her coat I happily obliged. Taking some tobacco out of a cigarette and inserting the snapper, then carefully replacing the tobacco, making sure my mother got the doctored cigarette and not my father (after all I wasn't suicidal). My mother thanked me and lit the cig, at this point I made my exit - just in time as after a couple of puffs - BANG! - the cigarette was in tatters and my mother after almost having a heart attack went hunting for me all over the estate. The moral of this story - SMOKING IS BAD FOR YOUR HEALTH!