You point at your desired potion

"The blue potion...?", the man says.
"Well, this is a peculiar one, I must say! Every time you drink one, a completely new, unopened one appears out of nowhere! Truly amazing!"

This is bullshit... There's no way this blue potion can multiply!
But then he takes it, pops off the cork, and begins drinking.

"Ah! This is truly a wonderfull potion... it has the BEST taste!"

He finishes the potion. Nothing happens. You KNEW it was fake, there's no way- SUDDENLY a bottle appears in his other hand...
That... was awesome...
You take out your wallet, but you get interrupted by the man:

"Oh, you silly girl! I am not selling these... they're FREE!"
"you see... I am a alchemist... I brewed these marvelous potions myself. I need someone to test these potions for me..."

Test it? He's allready tested it himself, a couple of seconds ago!

"If you test this for me, come back tomorrow, and I shall pay you!"
"All you need to do is to drink a couple of these, and tell me if you feel any side effects!"

Allright... seems good to you. You are allways up for easy money.
You nod, and he gives you the potion. You walk away from the alley, and towards your car.

Next: https://www.furaffinity.net/view/13114414/