system
Given the following post, respond as if you're commenting on Reddit:
human
[Warcraft] An adventurer sold me some stuff and I don't know what to do, please help

It happened again! One of those adventurers you hear so much about stormed into my shop (artisanal cheeses, trade district, Stormwind, try our selection of Gilnean specials) and before I knew it, she'd convinced me to buy all this stuff from her that... well.

Some of this stuff looks really suspicious! There are like six vicious-looking swords and axes and twice as much armor, a whole pile of identical-looking helmets and I don't know what half this stuff even is. It's all very black and spiky, and some of it is dripping of lava, and I don't know what to do with it all! I just make cheese.

The adventurer mumbled something about fighting Deathwing? But I'm pretty sure we got through with that years ago. She just waved it off and said she just wanted them for the looks or something, and then something about being disappointed about a horse, and frankly I don't know where I even got the gold to pay her for all this.

Is it even safe for me to keep this in my shop? I suppose I haven't seen any rats around in a while, so that's a plus, but my cheeses are coming out weird and my dreams have been all... scary, lately.
gpt
First off, thanks for helping out our brave heroes, but secondly, if it is such a big problem for you, why didn't you just refuse to buy it?

You should really look into joining the N.P.C. union, especially if you got this big trouble with saying no. It is well worth If you already are a member, talk to your local representative to learn of the many, many benefits.  
The one that you are after is the adventurer's pickup service, who takes the equipment and "trash" to those who are willing to buy them for a minimal percentage of the profit, which usually to triple your "investment".

unless your haggling skills when talking to the adventurer sucked as much as your self-restraint, of course.