This page teaches you how to troll on chat using pings.
Step #1: Wait for someone to say they are going to watch Doctor Who. (Preferably Julia and/or Liza)
Step #2: Wait for before mentioned person/people to be 'away'
Step #3: Type in their names repeatedly and in all caps.
Step #4: Laugh as they come back upset that their precious Doctor Who was interrupted.
Ways the victims can avoid being ping-trolled: Turn off their pings while someone (*cough*Dustin*cough*) is on chat.