Clyde was a stranger

You had a sleepover with your friends and they decided to prank call some people. They called one guy's number and started insulating him, which made you feel bad so you didn't participate

Later that night you called the number back and apologized for your friends behavior

"You were raised well. You get a pass" he told you

"I'm standing outside the window and see your friends asleep. In 20 seconds I'm coming on and slaughtering them. You have a head start."