growing up in the 70/80ies making prank calls to random people was one of our most fun things to kill boredom. my fav one was we called some rando and ask for

growing up in the 70/80ies making prank calls to random people was one of our most fun things to kill boredom. my fav one was we called some rando and ask for "Frank". The obvious answer was "There is no Frank". You repeat this a couple of times until they get really annoyed, then wait a few hours and have the second person makes the call and say "This is Frank, has anyone called for me?" Another one was us calling a classmates parents home who we didn't like and who liked to bully us. Convince the parents that the son filled out a form for a raffle at our mall and he won and the parents should come to shop XYZ to pick up the price. Knowing personal info helped with the social engineering ofc. All this today would create a sh1tstorm but it was business as usual back then. Nobody cared and some people/victims actually saw the humor and even laughed.