So, I'm sitting here, minding my own business, when I hear voices. No jokes, I know this isn't exactly unusual for me, but these were from right outside my back door. By the time I go to look, there's no one there, so I figure it's my normal hallucinations. Couple minutes later, I hear scraping, tapping noises. OK, enough, I grab a length of pipe I have near the desk, open the back door and step onto my porch, ready to bust skulls.
Apparently, the owner of the apartment next door has someone fixing the external vents to the lint exhaust, and so is fixing mine, too...and the easiest access to this in on my porch. Poor guy looked up and jumped in fright. He says they knocked on my front door a few minutes ago, but seeing as I'm sitting 10 feet from it, I think I would have heard that.
Anyway, no harm done.