Group History: Our DM’s custom world has a thing for potions going wrong. And I personally have a habit of accurately calling chance dice rolls ahead of time.
The Scene: Looters were in the enchanter’s shop, stealing whatever was at hand. We engage them to take the loot for ourselves. Throughout the fight, they start testing out the things they’ve stolen on us. After taking some damage, the looter’s leader, a city guard, does the following:
DM: “He pulls out a red potion and brings it to his lips.”
Player: “It’s acid isn’t it?”
DM: “Haha! Just for saying that, roll a d6.”
*I roll a 1.*
DM: “He drinks it, and starts gagging, and then drops dead.”