Actual conversation with a crazy person
DovBear: Hey, you're smoking!
Crazy Person: That's right!
DB: Don't you know it's dangerous! And therefore forbidden by Jewish law!
CP: Don't give me that. One of the leading Haredi health authorities [name omitted] is a smoker.
CP: It's true. He says all the studies done that prove smoking is dangerous were done on non-Jews, so that is no proof that smoking is harmful to Jews.