Your 18 year old son has graduated from high school but doesn't have a plan yet.
His grades were simply that which didn't get him into a good college and, if you're honest, he's not ready for college yet and you know he'll screw up until HE'S ready to go to college.
So...he is still home.
Everyone else in your home goes to work and school during the day.
He's been trying to find a job...but hasn't been able to yet.
A neighbor tells you that he has been having company during the day and the young lady leaves before your younger daughter gets home from school.
You don't know anything about this.