I don't know how this happened because I'm pretty careful and I usually sit down when I fill my cartos but I was standing up filling a carto and the dropper top popped off (I think I was using a syringe and didn't put the top back on securely) and my dog was standing by my feet and some dripped on her.
I picked her up and put her in the tub and used the sprayer and washed her off. It really scared me!! Dumb thing to do. But she weighs about 20 lbs and never smoked (as far as I know).
Keep the nicotine away from kids and pets.