And he's got pictures:
Greg Minton sent us these photos, which he says show a "spirit orb" (top) and "ghost mist" (bottom).
"Each orb represents a different spirit, supposedly," he said. "Some of them you can see the face clearly, and some of them you can't."
He said he sees the ghosts more often during the full moon and the new moon. The mist, which began appearing about three months ago, responds to voice commands.
"You can ask it to do stuff. You can ask it to touch you," he said.
But alas, the mist appears less often on hot days, so Minton hasn't been seeing it as much lately.
Minton said he didn't always much believe in ghosts. But now that he has thousands of photographs, he's not so sure.
"It's hard not to believe it when you get all kinds of crazy pictures."
News & Observer Photo Editor Matthew Fortner said he couldn't be sure what the photos show without being on the scene. But he said the orbs could be water droplets, dust, water or finger smudges.
N&O Features Photo Editor John Hansen was more blunt.
"I'd say the orbs are raindrops in the foreground lit by the camera flash. The mist is just mist," he wrote in an e-mail message.
You can read the N&O's recent feature on ghost hunters here.
Minton took the photos with a digital Nikon Coolpix camera.