Since 1909, the M3 Institute has researched and developed the world's most cutting-edge mischief, publishing its findings in the form of the unique training guide called MISCHIEF MAKER'S MANUAL.

Using state-of-the-art pranking technology, the M3 Institute field-tests each of the gags in the manual for quality, safety, and reliability. It also develops wackier, more modern mischief in its high-tech M3 Labs.

The exact location of the Institute is classified.