My grandfather’s plans

I learned this at a dinner party tonight when my uncle repeated in English what he had heard about, in Danish, in front of me yesterday.
My grandfather was very progressive. He had used geothermal energy to heat the farmhouse we visited him at. He applied to have a windmill to provide electricity, but he couldn’t get approval. The reason: It would be too loud.
The new owners of the property built a small lake, or large pond, in what used to be a horse pasture. They expanded even further with funding from the EU because they were returning wilderness to its natural state and would help frogs breed. They even built a nice log shelter on its shores. Built with trees my grandfather had planted. You could even sleep there if the weather was nice.
He brought a girl out to do just that, but neither could get any sleep. The frogs were croaking all night. The next evening he brought out a decibel measuring tool. The sound was louder than is safe for humans.
This is an example of irony.