Maybe guys like myself could use some bullet points on why that's bad? I can think of: fumes, spillage (again fumes), "in case of fire" but that's about it. Constructively it might make for great video content.....I've seen bad things happen refueling equipment, and doing it inside can really accelerate the bad!
(Rumor has it when it's "Wisconsin Winter" cold out I fuel my saws on the workbench before taking them outside so they start easier.)
(I start them outside though.)
(Usually.)