This is a silly mod and I love it. :3
I'm just requesting a keybinding that can toggle your smoking on and off (and a setting that says whether the default on starting a new game is on or off.)
Maybe also a constructable cigarette item (20x cigarette for 1 wood, 1 plastic?) that causes pollution when you activate it?
The keybinding is the real request - I thought of the item while I was writing. :P