When you know you have a problem-solver for a son
Let's say that you're a sixteen-year-old kid sitting in a waiting room, waiting for your dad to come out of the therapist's office. And you need to go the bathroom. And you don't have a pen to write a note with. And your dad's laptop is locked and you don't know the password so you can't leave him a big Microsoft Word note. Whaddaya do?
Well, if you're Sean, you start with the only place you can leave text and solve backward, taking advantage of the fact that the therapist has left a rack full of business cards out where you can get to it, and that your dad will probably remember which chair you were sitting in:
(In case you can't make out the words, Sean is apparently attempting to log in as user "had to go to bathroom - be right back".)
With all due recognition of my own lack of objectivity, I still think that's a pretty bloody creative kid.