I don't smoke anymore, but I used to. I was in a restaurant, on a date with a non-smoker, and was desperately in need of a smoke, so I excused myself and went to the ladies' room. I took a few puffs off a cigarette, and I don't know why it didn't occur to me to throw it in the toilet, but it didn't. I stuck it in the metal container for used mysterious feminine monthly products, and it started smoking. Once it was in there, I didn't have any way of putting water in there, so I just closed the metal lid and left. Well, it started smoking more and set off the fire alarm. I still laugh when I think about it.