Little Green Men

Quark: What's that disgusting smell?

Nog: I think it's called tobacco. It's a deadly drug. When used frequently, it destroys the internal organs.

Quark: If it's so deadly, then why do they use it?

Nog: It's also highly addictive.

Rom: How do they get their hands on it?

Nog: They buy it in stores.

Quark: [stunned] They buy? If they buy poison they'll buy anything. I think I'm gonna like it here.