There were two versions, the first one had a guy in the office accidentally starring a fire the other version had them at a DQ eating a flamethrower chicken sandwich I think you're thinking of the one with the flamethrower chicken sandwich where they have to inhale while they talk
Best dq commercial was the flaming burgers where everyone was breathing fire out of their mouths
There were two versions, the first one had a guy in the office accidentally starring a fire the other version had them at a DQ eating a flamethrower chicken sandwich I think you're thinking of the one with the flamethrower chicken sandwich where they have to inhale while they talk