@necromancer " target="_blank" style="background-color: rgb(255, 255, 255); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 1rem; font-weight: 400;">
I think this may explain the blast.
Instead of Helium that is expensive, LPG or other gas might be used. This could be the case in other cases also like Ferry and party.
