Well, now I have spent the last two weekends waiting up for him to get home after 2 am because he's at Denny's with friends after something social. And last night he said "Busy weekend, Mom. I'm giving blood Saturday, then trying a noodle place with friends. Sunday I'm going skiing." This is in addition to the Super Bowl party I already knew was on his plate.
Also: He's talking about "backpacking through Europe" with a friend.
Well, I'm pleased as punch.