I use snus all the time, it's in a pouch, there is no spitting, when I am done I deposit the pouch in the lav. I know it is an artificial no-no like e-cigs, but no one is ever the wiser.

Dipping is kind of obvious and it's the kind of evil that people are willing to narc on. It's as if you went around punching babies to some, not even worth it.