I don't know if i can top it but this is good. Back in 1985 i was working for a general contractor and we were building a new Inn/Hotel. The loam had been scraped up and the existing buildings had either been removed or demolished. There were small piles of loam and dirt scattered here and there. From the first day on the job myself and the other guys had seen small bones around the dirt piles, thought they were chicken, and in some cases deere or larger animal bones.
About eight months into the project the owner of the roofing company we hired was onsite looking around and he picked up one of these bones lying on the ground. He looked at and said it was a human bone. At an earlier part of his life he was premed.
Here is where the fun started. The police were called in, they called in the state police, and they called in the coroner.
After about a week of polking around and digging they found what they were looking for. A small family plot.
It seems that back in the early 1800's this property had been a farm and what we had was the family cemetery. It never showed up on any drawings the city had for the area.
The police said they would try to locate any relatives and rebury the bodies at a local cemetary.