I've got a story I've started, and realized I have no explanation as to why the main character has a wearable flamethrower. Right now, I'm leaving it as 'He's a youtuber who makes stupid stuff so people will watch and give him money', but would like the explanation to be less unique to him so that I can later have him fight another guy with a wearable flamethrower in an epic boss fight carefully timed with some fast paced music.
The time is about twenty-thirty years ahead, a small mars colony and moon base, but no space travel beyond that. Technology has managed to advance a bit, and the world has degenerated a little bit, with the richer people looking kinda like the guys from WALL-E on AXIOM(fat people who sit in hover chairs watching funny cat videos all day), and lower classes doing a lot of dangerous jobs in unsafe conditions. So, no OSHA.
I can't think of anything off the top of my head that would require a wearable flamethrower, but let me know if you think if something.
EDIT- to avoid confusion, the character is on earth. not the mars/moon colony.