Misbehaving shadow during Math lecture prank

Prankster in this funny video sits himself beside people on their cell phones and responds to their conversations. source: reddit MediocreFilms

Funny video featuring new Innovation from Google Japan, the keyless keyboard. The "keyboard" attaches to a party horn (or piro-piro) and allows hands free operation. source: Google Japan

You know your office prank war has gone too far when you find a live bear in your cubicle. source: i-am-bored.com