The Hole That Appears in a Shinichi Hoshi Short-Short

I noticed that a "hole that appears in a Shinichi Hoshi short-short" had formed in my garden, and I couldn't help but shout, "Hey, this is a hole that appears in a Shinichi Hoshi short-short!" After tossing a small pebble into the hole, I suddenly clamped my mouth shut.
I was struck by a terrifying thought: "If I shout something careless, the punchline of the story will be that very line echoing down from above."
Then, I realized that if the neighbors found out about the existence of such a hole, they would surely come to dump their trash in it. I hurriedly tried to hide the hole from people by placing dead branches and the like over it, but perhaps it's true that you can't stop people from talking; people who had heard rumors from somewhere began dumping their trash one after another before I could even stop them.
I tried to persuade them, saying, "Stop it, if you do that, all this trash will eventually fall down on everyone's heads," but—
"Sure, that might be the punchline in a Shinichi Hoshi short-short, but it hasn't been decided yet that this is actually a hole that appears in a Shinichi Hoshi short-short, has it?" they said with a straight face, and they continued to dump whatever they wanted into the hole, from trash and failing test papers to leftover soil they didn't know how to dispose of.
I never heard the echo of the trash hitting the bottom of the hole. My conviction that this hole was indeed one that appears in a Shinichi Hoshi short-short only grew stronger day by day.
Before long, the government, having heard the rumors from somewhere, also showed up. An official from the Ministry of the Environment or somewhere similar, dressed in a sharp suit, took a crisp business card out of a silver card case and—
"We would like to expropriate your garden as a waste disposal site," he said with a deadly serious face.
"No, as you surely understand, this hole is one that appears in a Shinichi Hoshi short-short, so eventually, all the trash dumped into it will come back."
But the official didn't lose his smiling composure and said,
"We are aware of that. But even in the story, there was a time lag before the first trash dumped into it fell back down from the sky, wasn't there?"
"Well, I suppose so."
Come to think of it, the first piece of trash in the story (a small stone) didn't appear above the construction worker's head until enough time had passed for a road to be built all the way to the hole.
"In that case, one could consider that for a while after dumping it, the trash effectively disappears from this world."
"That may be true, but..."
"That much time is enough for us. We are truly troubled by the lack of waste disposal sites," the official said.
Thinking it would be useless to say anything more, I accepted the money and decided to move to a town along the coast in the countryside.
The government apparently decided to expand the hole and dispose of nuclear waste, classified documents, and counterfeit money used in crimes. A road was built to the vacant lot that used to be my home to dump the trash, and every single day, many trucks would arrive. I heard stories of this sort from an old acquaintance who still lived in that town, as if it were someone else's business.
But it no longer had anything to do with me.
I spent my days watching the waves come and go. I spent my time watching the sea and the sandy beach, where the scenery changed every day. I tried to forget about the hole, but in truth, there wasn't a single day that I didn't think about it.
Some time passed after that. I was still watching the sea, gazing idly at the ebb and flow of the tide, when one day, I suddenly felt a strange, unpleasant presence run through the seascape.
I felt an indescribable humidity, like the strange warmth in the air you feel on the day winter turns to spring, and as I tilted my head, wondering what it could be, a voice suddenly came from the void, from high up in the sky, as if calling out to everyone:
"Hey, this is a hole that appears in a Shinichi Hoshi short-short."
I looked up just a little, then scratched my ear, thinking that my hearing hadn't gone bad and I hadn't started having auditory hallucinations, and muttered, "I knew it."
At my feet, a small pebble fell from out of nowhere.