One more time...I NEVER said smoke created the drops. For your education I will explain. Leather Medic said the smoke caused the original stain damage. Cleaning the nicotine residue and the saturation of it was the problem that lead to the weak resistance to the drops.. I blame no one for things I create. If I created a problem with your sensitive nature I am sorry.
Now it makes sense. I once had a very nice belting leather briefcase. In a burst of leather enthusiasm I once cleaned it with saddle soap even though the manufacturer said never use any cleaning product on it. The next time it was caught in the rain it was stained by the drops.