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A comment on Ask HN: Any Interesting Niche Hobbies?. Parent comment

Re:Ask HN: Any Interesting Niche Hobbies? by neves on Wednesday April 08, 2026 @11:09PM (#47698869)
Mosquito sound repellents are useless for insects, but solved my bat problem.

A bat loved to defecate in my son's bathroom. The most internal room of the house. I've put a sound repellent in the bathroom and it stopped happening

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Re:Ask HN: Any Interesting Niche Hobbies? by thinking_cactus on Thursday April 09, 2026 @01:03AM (#47699459)
Just probably don't want to put those outside, that would probably count as noise pollution for them.
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Re:Ask HN: Any Interesting Niche Hobbies? by globular-toast on Thursday April 09, 2026 @03:35AM (#47700425)
That's funny because bats would eat the mosquitos so by driving away bats you're actually making the mosquito problem worse.
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Re:Ask HN: Any Interesting Niche Hobbies? by 101008 on Thursday April 09, 2026 @10:03PM (#47712729)
Interesting. What's the brand that worked for you?
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Re:Ask HN: Any Interesting Niche Hobbies? by neves on Friday April 10, 2026 @10:50AM (#47719009)
A cheap one from AliExpress.
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