Once you pick it up, there's no going back. You will already be poisoned and you can't stop it. As soon as you try it, millions of them will start tearing at your body.
Minuscule creatures that destroy your body.
At first, you don't notice anything but they've been working, attacking your mind. They make you get more and more, until they all attack you. They attack your mouth, gums, teeth, tongue.
Once they're done, they go to your lungs and destroy them from the inside, out. Soon they will have gone through all of your body, destroying it slowly.
So please I beg of you,
Don't pick up that cigarette.