How to ruin your friend's story: A guide by Mirasi. part 1.

The first step to ruining your friends creative and scary story, is to give it a happy ending that makes you laugh inside, even if it's awful. take this example.

My friends story:
That thing has been there for almost a week.
The figure in the window. It looks featureless,
Only skin on a human frame, and it’s pressing
Itself against the glass somehow. I don’t know
How it got there, and I don’t know how to get
Rid of it.
At first I thought it was a prank, a doll or
mannequin that some jerks put there to scare
me. But I realized as I walked out of my house
to pull it away… it wasn’t there. I shrugged it off,
thinking that someone had hidden it while I was
talking through my door. But I went back in and looked out that same window, and it was looking in, staring at me. I walked around my house, yelling for whoever it was to come out, but no one was there. The thing is hairless and naked, and it didn’t look like it actually had eyes, or even a face at all. But its head is turned towards me when I enter the room. When I sit on my computer, I can feel its faceless hatred boring into my neck. But when I turn around, it’s innocently turned in a different direction.
Finally on Thursday I tried to open the window, but it’s stuck. I think the thing’s hands are keeping it down. But I got a good look at its face. Its eyes and mouth are behind the skin, pushing outward.
It stared at me, smiling.
Of course, I screamed.
I pulled back a fist and smashed it onto the glass, determined once and for all to get rid of the glaring monster. I know I’m strong enough. That glass should’ve cracked. But it didn’t. It shuddered under my hand, but it didn’t break. And that smile just got wider and wider and wider, until I thought its head would break in half. It raised its own hand and bashed the window with its palm. It was mocking me. But I saw the faintest crack begin to appear where it had hit, and I backed away. No way did I want that smile in the same room as me.
So I got a roll of duct tape, and I started covering the window. I couldn’t look directly at it; I nearly shoot my pants just knowing it was watching me. But I couldn’t help it, I took a quick glance at the skin covered face. A small peek.
It was angry.
That grin was now a gaping frown full of teeth. The skin had ripped away from its mouth and I coul see down its cavernous throat. A menacing rumble started to fill the house, and that hairline crack began to spread like splintering ice. I pulled down the duct tape. The rumble stopped, the split skin healed over, and it began to smile again. Now it’s night, and the noise hasn’t started again. There are no sounds, no rumble, no crackling glass. Everything’s quiet now. I can feel its claws gripping the back of my chair. I can hear its skin stretching as it smiles.
It’s watching me type...

My ending:
All of a sudden, it spoke. "would you please take the time to try one of the new M&S Halloween muffins?" it said, as it took off its costume to reveal a rather cute and pretty figure underneath. It was a girl, the kind you'd expect to see in a movie. Her face was slightly red where she was embarassed from being in such an ugly costume, however she smiled innocently, holding out a plate of muffins ready for you to take one.

Oh dang, this was so long, there's a part two? XD