This must have been cool for the kid. Hell, in the mid 80's we had a friend who used to have out of town Hull Olympiques players stay at his place for the duration of the season. We got to play ball/ice hockey with Luc Robitaille, Steve Averill, Benoit Brunet and others from time to time and we were pretty impressed even if we were only 3 or 4 years younger than they were for the most part. I remember Robitaille playing nets with next to no equipment and Steve Averill taking slapshots at him with those hard plastic orange balls...
I can only imagine what it was like for the kid to have Subban crash his ball hockey game! Good on Subban to have done that!