[Orodreth]

The ones who are inconciderate and will smoke in a closed room or an openroom for that matter without even thinking to ask if others mind are just plain annoying. I don't smoke in closed rooms when there are people who don't smoke and mind, and I don't stand in doorways when i smoke, I don't usually stand in doorways period, it annoys people who are trying to do their own thing.

Nicotine IS a poison. You can make a poison that can kill one full-grown adult male just from extracting the nicotine in one pack of cigarrettes and dropping three drops of it in their mouth.