What's the creepiest thing you've ever found in an old building?

Went to an abandoned hospital.

There was a large square staircase spiraling up to the roof on the outside of the building.

Locked steel door at the bottom, so the only way up was to climb the outside up to the first landing.

My buddy boosts me up.

I climb over, and there's a sleeping bag with a steak knife next to it on the landing.

I call down, uh, we're definitely not alone here, dude. No, but it's cool, says a voice behind me,

scaring the crap out of me and causing me to jump and whirl around. There's a young, dirty,

homeless-looking guy just standing there, coming down the stairs from above,

hands up, palms out. I didn't mean to scare you. He takes a seat on the stairs, so I carefully

step on the handle of the steak knife, lean down over the edge, and pull my friend up. We had planned

to sit on the roof and drink beer, so we offer a homeless guy a beer, which he gratefully accepts,

and we shoot the crap on the landing for a while.

We're talking about the city, the cops, traveling, life in general.

He's basically a drifter, been in town for a week or so, but a nice guy.

Things are going pretty well, and then he asks,

You guys are human, right?

I freaking hate it when I meet people that end up being aliens.

You never know until you peel their skin off. They've been after me a long time, you know. They don't stop.

They never stop. Sometimes I think I should just kill everyone to be safe. He's definitely not

joking. And there's an uncomfortable silence as my friend and I realize this guy is freaking crazy.

Yeah, man, I say, we're human, we just wanted to check out the place and drink some beer.

...