Ignorant dealers

I really hate guys that deal weed but don't know what they have. I've noticed that this is mainly a weed only problem as it seems that drug dealers seem to know what product they are carrying.
Dealer: Dro, I got dro
Customer: What kind you got?
Dealer:I got hydro, nigga you deaf?
Customer: No shit. It's all hydro if it's grown in water asshat.

Example 2: This is a junkie buy smack
Junkie: What you got?
Dealer: I got Smurf, China White and Champagne.
Junkie: Lemme get 3 Smurfs.

What is so hard about knowing your product? Get it together guys. If you want to buy from you, you need to know thats what you got for them to buy from you.