Forcing NPC's to buy your stuff - Poor Merchant

Summary by Krater

A fruit salesman tries to sell increasingly expensive and fantastical items to an adventurer in exchange for one copper piece to buy medicine for his sick children, but the adventurer continually sets his purchases on fire.

From the video

Answers: What happens when an RPG merchant tries to sell items to an adventurer?

• RPG merchant trope
• RPG inventory items
• Video game logic parody

What it concludes

• The fruit salesman ends up with a glittering skull of ra'uh and no children left alive.