# Help me solve a mystery **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [May 31, 2014, 10:03pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723 "2014-05-31T22:03:40Z")\ **Posts on this page:** 13\ **Page:** 2
**Author:** ![GusNSpot](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gusnspot/32/436_2.png) [@GusNSpot](https://boards.straightdope.com/u/GusNSpot)\ **Post date:** [June 1, 2014, 4:43am UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/21 "2014-06-01T04:43:12Z")
As I get older, I hear ghost knocking more often. We moved a few years ago & the ghost knocking got worse. The wife & I both see what looks like a person or shadow of one fliting past doorways in the corner of our eyes. Over night guests are told not to worry, we know it / they are here. Sure would like a good look though. ---
**Author:** ![Senegoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/senegoid/32/6606_2.png) [@Senegoid](https://boards.straightdope.com/u/Senegoid)\ **Post date:** [June 1, 2014, 10:00am UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/22 "2014-06-01T10:00:52Z")
> [@not\_what\_you\_d\_expect](#): > > Maybe a bird? We used to have one that knocked like that outside our bedroom. This sounds plausible. Woodpeckers will do that. ---
**Author:** ![johnpost](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@johnpost](https://boards.straightdope.com/u/johnpost)\ **Post date:** [June 1, 2014, 3:52pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/23 "2014-06-01T15:52:44Z")
> [@not\_what\_you\_d\_expect](#): > > Maybe a bird? We used to have one that knocked like that outside our bedroom. > [@Senegoid](#): > > This sounds plausible. Woodpeckers will do that. that’s more like a Sheldon knock. ---
**Author:** ![Ethilrist](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ethilrist/32/4604_2.png) [@Ethilrist](https://boards.straightdope.com/u/Ethilrist)\ **Post date:** [June 1, 2014, 4:15pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/24 "2014-06-01T16:15:41Z")
> [@GusNSpot](#): > > As I get older, I hear ghost knocking more often. > We moved a few years ago & the ghost knocking got worse. > The wife & I both see what looks like a person or shadow of one fliting past doorways in the corner of our eyes. > > **Over night guests are told not to worry, we know it / they are here.** And I’m sure they sleep just fine, once they’re told “It’s okay, we know the place is haunted.” Damn, now I want to put in a few odd noise-making devices if I ever remodel a house… “Oh, that? Ghosts. Pay them no mind, they never do any harm, and they hardly ever steal anything or move all your stuff around. Be careful you don’t leave your toothbrush out, though…” I don’t think I’d get many repeat visitors. ---
**Author:** ![GIGObuster](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gigobuster/32/421_2.png) [@GIGObuster](https://boards.straightdope.com/u/GIGObuster)\ **Post date:** [June 1, 2014, 5:12pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/25 "2014-06-01T17:12:58Z")
Get a wireless camera like these ones (look for audio recording too): [http://www.amazon.com/Best-Sellers-Camera-Photo-Surveillance-Security-Cameras/zgbs/photo/898400](http://www.amazon.com/Best-Sellers-Camera-Photo-Surveillance-Security-Cameras/zgbs/photo/898400) Point the camera to the suspected area. Set a computer to record the stream. After an incident check the recorded video. ---
**Author:** ![GusNSpot](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gusnspot/32/436_2.png) [@GusNSpot](https://boards.straightdope.com/u/GusNSpot)\ **Post date:** [June 1, 2014, 6:50pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/26 "2014-06-01T18:50:57Z")
Nah, I have a game camera but it is more fun to just be able to talk about it. We are retired, need some talking points sometimes. And all my family & friends are loving help us watch for it. Prolly not for real because the cats & dog never seem to see it or else it is not worth looking or barking about. The old house had a lady in white robe we would see sometimes late at night. Maybe it is some kind of mass hysteria we are passing back & forth between just us two. Hummmmmmmmmmmmmmm Need to read up on that. ---
**Author:** ![Senegoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/senegoid/32/6606_2.png) [@Senegoid](https://boards.straightdope.com/u/Senegoid)\ **Post date:** [June 2, 2014, 2:05am UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/27 "2014-06-02T02:05:40Z")
> [@GusNSpot](#): > > Prolly not for real because the cats & dog never seem to see it or else it is not worth looking or barking about. The mystery of the dog that didn’t bark? That just confirms that the perp is somebody well-known to the dog. [Sherlock Holmes understood that.](http://en.wikipedia.org/wiki/Silver_Blaze) ---
**Author:** ![Joey\_P](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Joey\_P](https://boards.straightdope.com/u/Joey_P)\ **Post date:** [June 2, 2014, 2:50am UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/28 "2014-06-02T02:50:26Z")
> [@Senegoid](#): > > The mystery of the dog that didn’t bark? That just confirms that the perp is somebody well-known to the dog. Or it’s a picture frame. ---
**Author:** ![GusNSpot](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gusnspot/32/436_2.png) [@GusNSpot](https://boards.straightdope.com/u/GusNSpot)\ **Post date:** [June 2, 2014, 6:01am UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/29 "2014-06-02T06:01:35Z")
> [@Senegoid](#): > > The mystery of the dog that didn’t bark? That just confirms that the perp is somebody well-known to the dog. [Sherlock Holmes understood that.](http://en.wikipedia.org/wiki/Silver_Blaze) I can’t believe I forgot that… ---
**Author:** ![GusNSpot](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gusnspot/32/436_2.png) [@GusNSpot](https://boards.straightdope.com/u/GusNSpot)\ **Post date:** [June 2, 2014, 6:06am UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/30 "2014-06-02T06:06:38Z")
> [@Joey\_P](#): > > Or it’s a picture frame. It’s never the picture frame. 😛 ---
**Author:** ![johnpost](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@johnpost](https://boards.straightdope.com/u/johnpost)\ **Post date:** [June 2, 2014, 2:59pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/31 "2014-06-02T14:59:09Z")
who framed the picture? ---
**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\ **Post date:** [June 2, 2014, 3:16pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/32 "2014-06-02T15:16:38Z")
Had an unexplained knocking a few months ago that I described as a “stereotype knock”. Each time it happened I heard, “knock, knock, knock”. It was really starting to freak me out, then I figured out what it was. the default notification for a new message in **WhatsApp**. My brother would occasionally message me. I would eventually see my phone blinking and check. I didn’t realize there was a sound for new message, and my phone lives on the kitchen island by a recharge outlet. ---
**Author:** ![Malthus](https://avatars.discourse-cdn.com/v4/letter/m/85f322/32.png) [@Malthus](https://boards.straightdope.com/u/Malthus)\ **Post date:** [June 2, 2014, 3:22pm UTC](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723/33 "2014-06-02T15:22:30Z")
> **[Deathwatch beetle](https://en.wikipedia.org/wiki/Deathwatch_beetle)** > > The deathwatch beetle (Xestobium rufovillosum) is a species of woodboring beetle that sometimes infests the structural timbers of old buildings. The adult beetle is brown and measures on average 7 mm (0.3 in) long. Eggs are laid in dark crevices in old wood inside buildings, trees, and inside tunnels left behind by previous larvae. The larvae bore into the timber, feeding for up to ten years before pupating, and later emerging from the wood as adult beetles. Timber that has been damp and is af... Beetles that make a knocking sound, which can be amplified by the layout of some houses, traditionally associated with the supernatural … [Previous page](https://boards.straightdope.com/t/help-me-solve-a-mystery/689723.md?page=1)