Bobby had been away for a bit of an extended holiday visiting his family, if such a word could be used to describe any time he spent with his family. His relationship with them was still abit strained, but it was getting better a little bit at a time. He was committed to the long game, they were his family, and it was worth it to him to make the effort. That didn't stop them from driving him crazy though.
He was stalking the halls looking for students to hassle. He was the RA for the boys hall, and he took that as seriously as he took any opportunity to goof off and mess with kids heads. In all fairness to himself, he really did take the responsibility seriously. He had been at the Institute for a long time, and there were few relationships there that weren't important in his mind.
He heard the piano as he was walking out of the gym. He figured at least he'd get to shoe someone out of the room. Then the singing started. It wasn't one of his residents anyway. He walked into the room respectfully enough, ready to make a comment when they stopped, and he saw who it was. He was totally unprepared for this encounter. There was a smile combined with the look of total surprise on his face.