Per 
Item #: SCP-5930
Object Class: Keter
Special Containment Procedures: As SCP-5930 is at present incapable of being distinguished from any standard civilian, it cannot presently be contained in a manner other than a termination mission. These are to be immediate, and will be prompted by webcrawlers finding any results of news on someone matching the description.
Description: "Mr. McGiggles", a name subjects use to refer to themselves, typically manifests in heavily depressed or traumatized males, but otherwise has no pattern as to where it strikes. Manifested behaviors include an intense and often unsettlingly optimistic attitude, a worship of something affected individuals refer to as the "longest running gag yet", and a tendency to want to spread their condition, though a method therein hasn't been found by foundation or "McGiggles".
They also gain fascinating abilities, such as the ability to move at immense speeds and create artificial replications of themselves. They also, notably, seem to have a paradoxical amount of prank items as purchasable from a joke shop, including but absolutely not limited to:
Mixed Nuts cans
Glitter, ejected typically from the sleeves
Loaded dice
Double-headed coins.
Uncomfortably realistic facsimiles of nigh anything present.
It should be noted that in isolation, individuals affected by the entity become immensely more depressed than prior, typically to the point of attempted suicide, only to suffer as they set themselves up for a joke.
Prank Logs in Captivity:
Attempted termination of a McGiggles: Individual burst into confetti and shreds of newspaper, and the real body of the individual was located in the next room over, snickering and rubbing his hands.
Restraining of a McGiggles: Unknown initially, but Senior Researcher ████████, who was present during the restraining, found later that one of his kidneys had been replaced with a large bean bag after complaining of pain to site medical staff. There was, curiously, no wound, but camera footage showed clearly, when slowed down, that he had somehow reached into his pocket despite restraints, produce said bean bag, and stretch his wrist out far enough to slip it under the shirt of the researcher., all in under a fifteenth of a second. No further is known.
NOTICE FROM THE FOUNDATION CLASSIFICATION AND MANAGEMENT BOARD
Request to demote to Euclid has been denied.
No, this entity is not a rampaging murder demon, nor is it a devastatingly dangerous lizard, but it is very deserving of it's Keter rating. It may seem "harmless", but despite it's childish use of it's abilities, it still has dangerous potential and must be handled.
— Daniel Stone, Director, CMB
