Dumb and Dumber Ghost
From Screamer Wiki
Dumb and Dumber Ghost is one of the earliest YouTube screamers, publicated in April 2006 by Reese Patterson.
Video
The video shows a clip from the titular movie. The scene in question is the diner scene. The clip plays normally, until the video asks if you spotted a ghost in that scene. It replays it, stating that the ghost will be circled.
The red circle appears on the van visible from the window. After a few more seconds, a piece of art by Frank Rivera of a screaming man with boiling skin appears with a very loud scream.
Link
NOTE: This video contains a very loud screamer, so we recommend turning your volume down.
.youtube.com/watch?v=1ABc7ZBfB