“Alright, alright! You caught me. You have quite the eye for this sort of thing, color me impressed. Though this is good stuff. Feel it, as authentic as can be. Eh? Pretty good, right?”

He blew a puff of smoke before continuing. 

“For having such a good eye, I’ll give you a deal. 40% off on this, and 20% on future deals. Even if it’s not the real thing, I pride myself on the quality of my wares. You won’t be disappointed. We have a deal?”