You can see the dirt and God only knows what else all over his fat fingers. Think about this, those people that work in the tobacco fields don't like you. You're the reason they're out there working so long and hard for a little bit of nothing. So count on it, they're spitting on that tobacco. They're even peeing on it.
Bugs crawl all over it.
If not, use your imagination. Figure out what makes your stomach roll and figure out a way to attach it to smoking. Remember, revulsion is the opposite of craving. It's the only thing that effectively cures cravings. Don't do this the hard way.