Per 
Item #: SCP-XXXX
Object Class: Euclid
Special Containment Procedures: The backpack can be kept in a standard security locker. It must be watched: Every year around October 13 the backpack fills with one set of clothes (see description). When this happens the backpack must be delivered to a specific location, preferably by an ephebofiliac anthrophage; after approximately thirty minutes it may be retrieved with no safety hazards.
Description: The backpack is a brown canvas backpack with banana slug patches.The backpack contains (a pair of brass spectacles, a University of California sweatshirt, a white T-shirt, a pair y-front underwear, a pair of white socks with green stripes at the top, and a pair of jeans with belt, wallet containing student identification, and sundry items when filled; it is filled for two weeks.
Addendum: Effect: If the preferred subject makes the delivery, the subject will meet a naked college freshmen who retrieves the backpack and dresses. The young man then walks off. When he reaches a point approximately 20 meters from the subject, the subject glow will calcify and then crumble; all that remains of the subject is his clothes and other belongings. The young man simply disappears. The backpack may then be retrieved safely.
If these events are not followed then the backpack with the force of a pound of plastic explosive.
History: In 1989 Santa Cruz college freshman/chemistry major Charles Anton Page was dared by several other freshmen to streak on University of California, Santa Cruz, campus; they had been joking around about how life was different in college and one of the boys brought up that the campus was clothing optional. They had taken Page's backpack and were waiting for him when they were chased off by campus security. His partially eaten remains were later found at the scene of a house that had exploded due to a chemical explosion. Strangely, there were no other chemicals in the area than those surrounding the backpack. Upon further investigation, other bodies were found; the house had been the lair of an anthrophage who preferred young male victims.
His backpack was returned to his parents along with the rest of his belongings, and removed to the garage. Over the next few years, the garage exploded yet the backpack remained undamaged. An insurance report was filed each year and eventually The Institute received news of the backpack.
The means of the containment were determined through research (the location was where Page was taken, the time was when he was taken, and the preferred subject was based on the alleged crime of the owner of the home). While it the Ethics Committee has debated asking the site administrator to just let the backpack explode, the radius and power of the explosion increase exponentially for each anniversary missed. Considering that it was been determined to just follow procedure to avoid a potentially larger explosion.
