Shock.swf

Shock.swf is a screamer animation prank created by unknown user, this animation can be only found on a site called: "mit.edu"

The animation first displays a text: "Wait for it...." on a white background, this persist for approximately 12 seconds, until a montage of scary pictures such as Regan MacNeil, Pazuzu and more appears, the non-scary pictures was also included, after this, this leads to a message: "Boo! Did i scare you?".

Link
NOTE : the following shock site contain graphic content!
 * mit.edu/activities/puzzle/2010/puzzles/2009/the_zyzzlvarian_holovid_institute/shock.swf