The Wrong Number Prank

Team up with other colleagues or friends of yours and make calls to the victim asking for 'Bill'. Make sure the calls to the victim come from an unknown number. At the end of the day, make a call to the victim with a new phone number, introduce yourself as 'Bill', and ask if there are any calls or messages for him. 

This Post Belongs To 15 Hilarious Office Pranks You Can Try On Your Coworkers