Take several people like this, looting gasoline by siphoning it into big drums. Take a still-hot lava flow right in the middle of it all. See that the siphoning creates a lot of gasoline fumes, which are flammable. When the fumes hit the lava, burst into flames, and carry those flames back to the siphoning operation.... BOOM. And that's how the people in the Congo were killed yesterday, at a gas station, trying to recover whatever they could from wherever they could.
Don't carry drums of gas over hot lava flows. What happens if one of these guys falls over?