So all three Sans' where sitting watching some scary movie late Friday night, I personally hate horror movies so I was just typing on the computer and chilling watching anime with Undyne and Alphys. We where watching SoulEater

So it's late around 2am and so I decide to be a total asshole and so I decide to scare them as a little prank, So they where in the middle of the movie and so I grabbed one of the kitchen knives and turn on the kitchen light and stand in the door way with the knife raised. Undyne recording the results.

The shadow loomed over them and they turned, all three of them screamed like a girl seeing the knife and threw pillows at me and ran out of the house like a bunch of babies.

I put the knife back and go to find them sitting in a tree outside as far away from the ground as possible so Undyne shows me the video and we are laughing so we left them until they came down.

After a hour or so they finally come down and went back inside, that party was so quiet after. I peak into the living room around 4 to see G holding the other two staying awake while they sleep.

They are still mad at me to this day for that scare