The previous owner worked for the phone company and had run some sort of 10 conductor shielded cable under the yard to the shed 40 years ago. The pairs weren’t twisted but I threw some RJ45 ends on there and did a quick test - it worked. After I finished the runs and now I have a PoE+ camera on my shed. I am pleased with the result.
Ethernet sometimes is a lot more robust than one would think 😌
But that’s still is no excuse for the shoddy, bent rats nest of RJ 45 installations that some electricians leave behind in perfectly good conditions where they could have done better.