Rug on my deck?

I’m sure it was an accident, I’ve found things like chip bags and lighters on my deck before, it happens oh well. My apartment is built with multiple floors of units in one building, so I’ve got the bottom floor with a deck that’s relatively close to the ground which is near a busy street.

I’ve had the town strangers come up and ask my wife how she’s doing before, nothing ever happened, not a big deal. So I know people at least see my deck enough from the sidewalk to notice it. If you really wanted yeah you could jump up on my deck but it’s not a concern for me, I don’t live in a terrible area and the police station is actually in view of my deck so I often don’t worry about it.

So today me and the wife went to our friends house from about 5 to 12. I get home and grab a beer, and want to chill outside and see the stars. I only have a camera on my front door and not on my deck, so I couldn’t have seen what happened, but I go to the deck to sit out there and there’s just a rolled up rug laying in the center of my deck. Certainly this isn’t someone putting a rug on my deck to see if I’m home and grab it. I’ve got curtains up I might’ve been home and not even noticed it.

The only 2 explanations I can think of is 1.) my next door neighbor is a hippie type of guy and me and the wife were out talking about wanting a rug for a deck. Maybe he just threw one over? He’s got a ton on his deck. 2.) my upstairs neighbor put a rug, rolled up horizontal with the deck railing and it fell off, didn’t unroll, landed not on the grass below but inside of my deck by possibly hitting my railing?

Thanks for reading my half shitpost half genuine curiosity in the matter, as I am genuinely confused and just wanted some likeminded opinions on the matter lol.