Fire breaks out during hornet’s-nest removal in Gifu, main house burns to the ground — 5ch: “Insurance pays out even for minor negligence”

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The story

A fire broke out at a home in Kurokawa, Shirakawa, Gifu Prefecture around 8:30 a.m. on the 12th, taking firefighters three and a half hours to extinguish. The blaze is believed to have spread from flames being used to exterminate a hornet’s nest; the man in his 70s doing the work fell off his ladder in shock, and the main house where the fire started, along with an adjacent building, burned down completely. On 5ch’s Breaking News+ thread, posters eagerly traded tips on real-world extermination methods (electric BB guns, pesticide-filled water guns, freeze sprays), while speculation spread about how fire insurance works — “even minor negligence gets paid out” — spinning into talk of whether the man actually profited by torching an old house.

On the 12th, a fire broke out at a home in Shirakawa, Gifu Prefecture. It’s believed to have spread from flames being used to exterminate a hornet’s nest.

According to police and fire officials, at around 8:30 a.m. on the 12th in Kurokawa, Shirakawa, Gifu Prefecture, a neighbor called 119 to report that “a single-story house is on fire.”

Firefighters responded, and the blaze was put out in about three and a half hours, but the main house believed to be the source of the fire, along with an adjacent building — two structures in total — burned.

Source: news.yahoo.co.jp / Original article here

What people said

20AnonymousOct 12, 2026 20:35
He'd probably just been leaving it alone this whole time. If he'd just kept ignoring it, they'd have cleared out on their own in about a month anyway.
31AnonymousOct 12, 2026 20:38
Re: #20
Do hornets really leave the nest after a month? I found a dried-out, empty honeybee nest stuck under my eaves too.
24AnonymousOct 12, 2026 20:37
The current trend is blasting the nest apart with BB pellets from an electric airsoft gun.
32AnonymousOct 12, 2026 20:38
Re: #24
I was sniping a hornet's nest and someone actually called the cops on me.
40AnonymousOct 12, 2026 20:41
Re: #24
I just blast mine with a Kärcher pressure washer while they're still small.
26AnonymousOct 12, 2026 20:37
Getting chewed out by his family to the point of wanting to kill himself would almost make him a decent person. Though he'll probably just get defensive and cut them off instead.
54AnonymousOct 12, 2026 20:44
Re: #1
It really burned down without a trace, huh. So the main house plus two outbuildings all went up?

Re: #26
If he's got fire insurance, he'll come out ahead with a brand-new house built from the payout ("yakebutori" — profiting off a fire) and everyone will even thank him for it. He could rebuild it barrier-free for his old age too.
65AnonymousOct 12, 2026 20:50
A slingshot, or a water gun loaded with organophosphate pesticide, works great for removal. I do mine from inside my car when it's raining.
95AnonymousOct 12, 2026 20:59
Re: #65
I'm planning to do the same with a yellow hornet nest at my place — dilute Sumithion (an organophosphate insecticide) 20x and hit it with a water gun at night. Saw it online — apparently it's a sure-fire method.
99AnonymousOct 12, 2026 21:00
There was some idiot in Korea who pulled the same stunt.
138AnonymousOct 12, 2026 21:14
Re: #99
Happens plenty in Japan too lol. Burned a whole temple down once lol.
103AnonymousOct 12, 2026 21:02
He should've just used a hornet-specific insecticide, something like Earth Jet Pro Premium… (´・ω・\`)
109AnonymousOct 12, 2026 21:04
Re: #103
Honestly, any insecticide works — the trick is to spray an LP-gas-propelled insecticide can and immediately light the gas with a lighter, turning it into a flamethrower.
107AnonymousOct 12, 2026 21:03
There's probably an old Chinese fable about this.

Meaning: a cautionary tale about panicking while trying to remove a minor pest (the hornets) with a reckless method (fire), and in doing so ruining yourself and losing a great fortune (the house) — a colossal blunder.
119AnonymousOct 12, 2026 21:08
Re: #107
"He smoked out the wasps and burned down his own house, losing the very thing he meant to protect." (a mock classical-Chinese-style aphorism)
113AnonymousOct 12, 2026 21:05
He should've had something to put the fire out ready beforehand.
114AnonymousOct 12, 2026 21:06
Re: #113
Can't help it now. (a pun: "shouka-nai" = "no fire extinguishing" plays on "shouganai," meaning "it can't be helped")
134AnonymousOct 12, 2026 21:13
When one showed up at my place, I didn't have money to call an exterminator, so I hid nearby half in tears and just kept blasting it with freeze spray. Maybe they thought it was just cold rather than under attack, because I never got stung once — they all just froze solid… I was so relieved when the queen finally emerged, slowly freezing, right at the end…
142AnonymousOct 12, 2026 21:15
Re: #134
Depending on your local government, they might even give you a subsidy for that.
145AnonymousOct 12, 2026 21:16
Re: #134
That might be a huge discovery. What kind of freeze spray was it?
141AnonymousOct 12, 2026 21:15
The hornet-removal guy I saw on TV was driving a Lexus, so it must be a profitable business.
146AnonymousOct 12, 2026 21:16
Re: #141
That's because it's like 10,000 yen a job.
163AnonymousOct 12, 2026 21:21
If you only use a spray that just grounds the hornets, sure, you get rid of them, but you don't get a fire insurance payout.
167AnonymousOct 12, 2026 21:23
Re: #163
Does insurance really pay out for something like this?
169AnonymousOct 12, 2026 21:25
Re: #163
Fire insurance distinguishes between minor and gross negligence, and apparently if it doesn't look deliberate on the surface, you get paid out under the minor-negligence category. Burn down an old house, pocket 20 million yen, score sympathy gifts from neighbors and relatives on top of that, then get paid by the media for your story afterward — what a genius.
179AnonymousOct 12, 2026 21:31
Re: #169
But I feel like this one wouldn't actually fly. If you try to burn a hornet's nest that's attached to your house, there's obviously a real risk the house itself catches fire, so…
193AnonymousOct 12, 2026 21:37
Re: #179
Without evidence, any story holds up. Even people out in the countryside all know hornets don't fly at night and that sprays made for removing them exist. There's no reason to go out of your way to use fire — which is less effective and more dangerous — in broad daylight. Go ahead, show me proof this was intentional — I think that would be extremely hard to prove.
206AnonymousOct 12, 2026 21:41
Re: #54
Does fire insurance really pay out even in a case like this? It's basically like he lit the fire himself.
210AnonymousOct 12, 2026 21:43
Re: #206
Apparently it counts as minor negligence, so the fire insurance pays out in full as a rule. Since it's a big old house, profiting off the fire is basically guaranteed.
207AnonymousOct 12, 2026 21:41
I wonder if a swarm of hornets caught fire and came flying straight at him.
235AnonymousOct 12, 2026 21:49
Re: #207
So it physically turned into a "heat-killing bee ball"? (a real honeybee defense tactic where workers swarm an intruder and cook it with body heat) (´・ω・\`)
242AnonymousOct 12, 2026 21:50
Re: #207
That reminds me, I once heard that to track down a nest, people would catch a hornet beforehand, tie a twisted paper wick to it, light it at dusk, and let it go — then follow the glowing point of light through the dark to trace the hornet's path back to the nest. Not sure if that was for hornets or honeybees. If you're careless, the leftover embers can start a wildfire, so losing sight of the light is absolutely forbidden.

Background and talking points

Using fire to remove hornet nests is a method long practiced in rural areas, but fire departments and local governments have repeatedly warned about the risk of fires spreading during dry spells. The claim that spread through the thread — “minor negligence still gets a full insurance payout” — isn’t wrong as a general principle, but actual payouts are decided case by case by insurers after they investigate whether there was gross negligence or intent, so full compensation isn’t automatic. What sets this apart from a simple accident report is that most replies treated the fire as a jumping-off point for swapping tips on real extermination techniques (electric BB guns, insecticides, freeze sprays, and the like), while speculating about just how negligent the man was and where the insurance payout would end up.

*This article is excerpted and summarized from the 5ch (Breaking News+) thread “[Gifu] Man in his 70s removing hornet’s nest with fire falls off ladder in shock, fire spreads to building, main house and others go up in flames.”

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