what invades my shop at night?

[David DeCristoforo]

Before we had a bunch of development right across the street from my shop, we were right in the path of the "Annual Potato Bug Migration". Every year for about two weeks, we would have potato bugs all over the place.

[Luther Oswalt]

If you were down here I would say you have snakes and lizards!
Leo

[phil harold]

From examining the evidence, I came to this conclusion:
The lines / trails are from a blinding flash-storm of electricity in which a cyborg assassin arrived from the future by Skynet searching to terminate Sara Connor

[Greg Cole]

Do you have any garbage bags-cans in the shop? Houseflies?
Could the tracks be from little wiggly maggots...?

[Dan Karachio]

My bet is little ring neck snakes. Are you in the north east?

[Tom Adger]

Greg, since you have asked us to help you play detective, it would help to know where you are. Northern Maine, Southern Florida? It would also help to know how tightly constructed your shop is. i.e., is there clearance around the bottom of your walls for critters, of any kind, to get in?

[Ron Dunn]

Do you live next to a railroad, or any other source of heavy vibration?

[Geoff Potter]

Unfortunately, what you are seeing is evidence that your concrete floor is fixing to crack. Quite common in the dryer climates. The concrete outgasses just before it cracks!









Just kidding!

[Chip Lindley]

Pre-May Workshop Gnomes doing their Spring Mating Dance!!!

Note: Gnomes are an Endangered Species! Do not attempt to trap, snare, or otherwise incapacitate these nighttime creatures, under penalty of Ancient Hex!

If not Gnomes, the tracks could be from moths beating their wings against your dusty floor! I've SEEN it happen! ( The moths.....NOT the Gnomes ) *chuckle*!

[Brian Kent]

Snails, Slugs, or Nazca.

[Brian Kent]

But seriously now, snails or slugs.
Try beer. No, really.

Put a little beer in a jar lid or bowl and leave it over night. The snails and slugs are attracted to the smell of the beer, they drink until they drown in it.

Sort of like Frat guys.

But thats how I got rid of snails and slugs in my vegetable garden. (My dog thought snails and beer for breakfast was delicious so I had to pick it up early in the morning.)

[Fred Belknap]

You need a critter cam. Looks like some kind of worm, maybe earthworm.

[Peter Quinn]

Nothing harmful, probably just radon finding its way out. Just kidding, I have not experience with how radon behaves. I'd go with the dwarf beard theory.

[Jim Rimmer]

Could be the socks that disappear from the dryer.

[glenn bradley]

I've got it! Dewey has trained his mice to visit you.