No male caller at Father Bally's was likely ever to forget his host's method of giving his guests a smoke.
He invariably took a cigar and, breaking it in half with his fingers, making as clean a cut as if done by a knife, he would hand one part to his visitor and light the other half for himself, saying: "Half a cigar is enough for any man to smoke."This can be interpreted to mean that too much nicotine is injurious to the system.
Link (here) to the fantastic essay of a remarkable Jesuit entitled, Memoirs of the Rev. Augustin Bally, S.J. by William Bishop Schuyler