My Dad's Bad History With Messing Around

My dad had a bad history with messing around in other people's relationships. So on that Sunday night it was 10pm which means my sister's boyfriend has to leave due to curfew rules and so on. We heard a low voice mumbling something as if he were trying to keep quiet. Then this unknown house intruder let out a loud sneeze and that's when we knew that there was someone in our home. I don't know what would have happened if nobody picked up the phone but I'm happy we didn't.