Tim had no idea what the hell was up with this "school" crap. He'd never been a fan of school, and after his dad had died, he'd all but given up on it. It was a point of contention between him and Bruce, but one he usually just conceded on publicly. (In private, of course, he'd simply sneak out and that would be that.)
But it could never be said that he wasn't curious. And in this place, the more you knew, well...
He figured it couldn't hurt, and made his way to the school. It was easier to just...go along over the rooftops, then pull clothes on over the costume and take the mask off to go into the actual building.