@JeremyECrawford "you can extinguish the fire […] & you create either fireworks or smoke". Is extinguishing optional?
— Bardface (@brightwoodbard) October 20, 2016
Pyrotechnics: extinguishing the fire is optional (the key word here is "can"). #DnD https://t.co/R7c7DGMWai
— Jeremy Crawford (@JeremyECrawford) October 26, 2016