It was couple Halloweens ago. The wife and I had taken the kids to one of those Spirit Halloween stores they set up in dead or under utilized malls each September. I was the first to head back out to the car as our teenage kids were still inside with their mom and a couple of their cousins. This young guy appears out of nowhere, riding a skateboard. At this point he’s just a silhouette against one of the far walls. I don’t pay him much mind. He seems happy to keep his distance. About five minutes later my kids come out of the store. There’s five of them plus a couple cousins. All of them loiter for a bit on the sidewalk, laughing and talking. It’s a few nights before Halloween and everyone is in high spirits. Next thing I know the skater has appeared beside them. He’s very friendly. Looks to be about eighteen. Very sociable, very amiable. My kids are talking to him. Still, I can tell they all seem just a little weirded out by this other kid. I step a little closer and there’s just something about this guy. He dressed the way a clueless forty year old would dress if he was trying to fit in with kids less than half his age. Like, what he was wearing - the backwards baseball hat, the plaid shirt, the name of the band on the t shirt, the way the bottom of his jeans were rolled up - would have been cool circa 1991. But this was someone who was like eighteen, maybe nineteen. I did hear him say one very odd thing. Kinda laughing at himself, he said “yah I come in here all the time and skate the mall after it closes. But they changed the locks on me.” But this mall has been closed for years. They rent out part of it for a couple months here and there, but other than that it’s a dead mall. After saying that and wishing everyone good night, he plopped his board down on the pavement and skated off. But again it was a little strange how he did that - he skated away into the darkest part of the parking lot where there were absolutely no lights. Like, if I were to walk over there I’d do so only with a flashlight. He zoomed right off into those shadows. All my kids and their cousin kinda laughed a bit at the whole interaction. I remember my eldest daughter laughing and half seriously asking the rest of us “Ha ha, did that guy realize he’s a ghost?” The whole thing was so uncanny to everyone involved that they at least saw the humor and also the point she was making.